'via Blog this'Gnetum gnemon (gnetum)
Gnetaceae (jointfir family)
ambiam, ambiamtupee (PNG: Maring); bago (Philippines: Bataan, Tayabas, and Camarines); belinjo, melinjo (Indonesia); blinjo (E. Java); dae, daefasia, daemalefo (Solomon Islands: Kwara‘ae); gnetum, joint fir, Spanish joint fir, two
leaf (English); maninjau (Malaysia); melindjo (Singapore); sikau, sukau, sukau buli, sukau motu (Fiji); tulip (PNG: Tok
Pisin); voe, khalet (Cambodia)
Harley I. Manner and Craig R. Elevitch
Species Profiles for Pacific Island Agroforestry
www.traditionaltree.org
April 2006
ver. 1.1
In BrIef
Distribution Found in Southeast Asia and
Melanesia.
Size Can grow to 10–15 m (33–50 ft) in
height.
Habitat Thrives in a tropical rainforest cli­
mate, rainfall 750–5000 mm/yr (30–200 in/yr),
elevations of 0–1700 m (0–5600 ft).
Vegetation Associated with the diverse
flora of Indomalayan and Melanesian hu­
mid rainforests and the cultivated species in
homegardens and orchards.
Soils Prefers slightly acid to neutral, well
drained soils and tolerates infertile and shal­
low substrates.
Growth rate Estimated at 0.75–1.5 m/yr (2.5–5
ft/yr) in height.
Main agroforestry uses Improved fallow,
windbreak, living trellis.
Main products Nut, leaf vegetable, timber.
Yields Nut production may reach 80–100 kg/
tree/yr (176–220 lb/tree/yr).
Intercropping Shade tolerant, it is inter­
cropped with many species including A.
camansi, Pandanus spp., durian (Durio spp.),
rambutan (Nephelium lappaceum), Parkia sp.
Invasive potential Although not reported as
invasive, its shade tolerance indicates the po­
tential for invasiveness in new environments.
Leaves and flowers.
photo: G. D. Carr   Gnetum gnemon (gnetum) 
InTrODUCTIOn
Gnetum (Gnetum gnemon) is an important agroforest spe­
cies in Southeast Asia and Melanesia, but unappreciated
throughout the rest of the Pacific islands. This small­ to
medium­size tree up to 15 m (50 ft) in height is native to
Indo­Malaya and perhaps Melanesia. The species is found
in dry and humid forests of the region. It is a spontaneous
regrowth species in fallow forests and is also planted as a
cultivated species in both backyard gardens and orchards.
The species is tolerant of shade, open areas, a fairly large
temperature range, a wide rainfall regime, and in all likeli­
hood infertile soils. Young seedlings respond positively to
phosphorous. As indicated by its absence in atoll islands,
the species may not be tolerant of salt spray. Gnetum is an
important food and cordage species in for Melanesia. It is
also used as a timber species and medicine. It is used as a
trellis for climbing species, i.e., Dioscorea yams.
DISTrIBUTIOn
Native range
Gnetum is native from Assam (northeastern India) east­
ward through Malesia to Fiji. The tree is present in As­
sam, Cambodia, Vietnam, Thailand, Malaysia, Malayan
Peninsula and islands, Fiji, Papua New Guinea, Solomon
Islands (Santa Anna), and Vanuatu (Pentecost, Ambae,
Maewo, Torres Islands). It is native to dry to humid tropi­
cal forest to lower montane forest (up to 1700 m [5600 ft]
in elevation in Papua New Guinea). The tree is commonly
found along rivers and streams, in both cultivated and
natural ecosystems. In the Bismarck Mountains of Papua
New Guinea, the tree is a component of breadfruit and
pandanus orchards. In Fiji, the species is found at up to 850
m (2800 ft) in elevation. Gnetum also native to Vanuatu,
where it is rare, and Samoa (Walter and Sam 2002).
Current distribution
It is said to have been introduced to the Andaman Islands,
Sumatra, and Java. Several sources indicate that the species
is present in the Caroline Islands of Micronesia (e.g., Wal­
ter and Sam 2002, Smith 1979). However, a careful review
of Fosberg et al. (1979, 1982) indicates that the species is
not present in any of the islands of Micronesia and that
any reference to the species is most likely based on a mis­
identification. Specifically, Phalaria nisidai Kaneh., which
is found on Babeldaob and Urukthapel in Palau (Fosberg
et al. 1979), was probably misidentified as Gnetum gnemon.
Additionally, after some 30 years of plant collecting, the
curator of the Guam Herbarium has not found the spe­
cies in Micronesia. Finally, there is no vernacular name for
Gnetum gnemon in Palau (Fosberg et al. 1980). It would also
be expected that if Gnetum gnemon was present and/or cul­
turally significant in Palau, it would have a Palauan name.
Therefore any reference to this species being present in Mi­
cronesia should be considered dubious.
BOTAnICAL DeSCrIPTIOn
Preferred scientific name
Gnetum gnemon L.
Family
Gnetaceae (jointfir family)
Non-preferred scientific names
G. gnemon var. sylvistris L.
G. acutatum Miq.
G. gnemon var. ovalifolium (Poir.) Blume
G. vinosum Elmer
Common names
ambiam, ambiamtupee (PNG: Maring)
bago (Philippines: Bataan, Tayabas, and Camarines)
belinjo, melinjo (Indonesia)
blinjo (East Java)
dae, daefasia, daemalefo (Solomon Islands: Kwara‘ae)
gnetum, joint fir, Spanish joint fir, two leaf (English)
maninjau (Malaysia)
melindjo (Singapore)
sikau, sukau, sukau buli, sukau motu (Fiji)
tulip (PNG: Tok Pisin)
voe, khalet (Cambodia)
Size
Gnetum is a small­ to medium­size tree that reaches 10–15
m (33–50 ft) in height and attains a trunk diameter of up to
40 cm (16 in). Branches are noticeably swollen at the base.
Typical form
The tree is slender with a straight main stem. There are
numerous whorls of branches down to the base.
Flowers
The species is dioecious, having male and female repro­
ductive organs on separate plants, but not completely so.
As a member of the gymnosperms, gnetum does not have
flowers. Instead, the species has cones or strobili (singular,
strobilus) which are an aggregation of sporangia­bearing
structures at the tip of a slender stem or axis. The staminate
strobilus is an axis (analogous to a slender spike), 3–5 cm Species Profiles for Pacific Island Agroforestry (www.traditionaltree.org) 
(1.2–2 in) in length, having many pairs of cup­shaped bracts
arranged in whorls. The staminate strobilus or male cone
which bears the microsporangia (pollen sacs) is also called
a microsporanginate strobilus. The ovulate (female) stro­
bilus is 6–10 cm (2.4–4 in) in length and bears the ovules
or seeds. It is also called a megasporangiate strobilus. This
axis bears a “pair of opposite sheathing bracts at the base,
followed by five or six whorls of ovules, with five to seven
ovules in a whorl” (Chamberlain 1935).
Leaves
Leaves are dark green, shiny, smooth, acute at both ends,
opposite, and variable in size and shape. Typical size of
leaves is 10–20 cm (4–8 in) long and 4–7 cm (1.6–2.8 in)
wide. Leaf shape is elliptic, lanceolate, and ovate oblong.
Branches flush and flower throughout the year.
Fruit
Fruits are yellow, turning purple­red or orange­red with
maturity, and ovoid, 1–3.5 cm (0.4–1.4 in) in length. The
skin is thin. In Indonesia this species fruits three times
per year, March–April, June–July, and September–October
(Cadiz and Florido 2001).
Seeds
There is one large ovoid or ellipsoid seed per fruit.
Bark
The bark is gray and marked with conspicuous raised rings
in the position where older branches have fallen off.
Rooting habit
The trees are deeply rooted with a strong taproot.
Similar or look-a-like species
Gnetum costatum is a similar looking tree. Fruit of G. costatum is spindle shaped and its leaves are leathery compared
with the ovoid or ellipsoid fruits and smooth leaves of
Gnetum gnemon.
GeneTICS
Known varieties
There are several varieties of Gnetum gnemon including the
tree form (var. gnemon) and shrub forms (vars. brunonianum, griffithii, and tenerum). Gnetum gnemon var. gnemon is
the commonly cultivated variety that is characterized by its
tree form and large fruits.
ASSOCIATeD PLAnT SPeCIeS
The general flora includes the many components of the
species­diverse Indomalayan and Melanesian humid rain­
forests. Walter and Sam (2002) report that in New Guinea
a close relative, G. costatum, is found in forests of Lithocarpus, Anisoptera, and Hopea.
Top: Fruits still attached to branch. Bottom: Stem and
branch attachments. photos: B. tomlinson   Gnetum gnemon (gnetum) 
Associated species commonly found in native
habitats
Gnetum is often planted as a cultivated species in
homegardens and orchards. In Papua New Guinea, this spe­
cies can be found in association with breadfruit (Artocarpus
spp.), Pandanus conoideus and other food and fiber species
(Kennedy and Clarke 2004). Some of these arboreal com­
plexes are quite old, as evidenced by the macrobotanical
remains found in archaeological sites. For example, mac­
robotanical remains of Canarium from New Guinea have
an age date of 14,000 BP (Before Present). The species is a
natural component of the rainforest, and is often a sponta­
neous component of fallow forests.
enVIrOnMenTAL PreferenCeS
AnD TOLerAnCeS
Climate
This species is best suited to a tropical rainforest climate
as it is very common at low elevations in the Indomalayan
and Melanesian regions.
Elevation range
0–1700 m (0–5600 ft) in Papua New Guinea
Mean annual rainfall
750–5000 mm (30–200 in/yr). It thrives best where the
rainfall is 3000–5000 mm/yr (120–200 in/yr).
Rainfall pattern
The tree grows in climates with bimodal or uniform rain­
fall patterns.
Dry season duration (consecutive months with < 0
mm [1.6 in] rainfall)
2–7 months (CABI 2003)
Mean annual temperature
22–30°C (72–86°F)
Mean maximum temperature of hottest month
32–36°C (90–97°F)
Mean minimum temperature of coldest month
13.8–22°C (57–72°F)
Minimum temperature tolerated
12.8°C (55°F)
Soils
It prefers generally slightly acid to neutral soils. As a tropi­
cal rainforest species, gnetum is probably adapted to soils
of low fertility.
Soil texture
It grows in light to heavy soils (sands, sandy loams, loams,
sandy clay loams, sandy clays, clay loams, and clays).
Soil drainage
It requires freely draining soils.
Soil acidity
Neutral to mildly alkaline soils (pH 6.1–7.4)
Special soil tolerances
The tree tolerates infertile and shallow soils. It can grow
on soils high in clay or sand, and also on calcareous rocks,
given continuous soil moisture.
A 10 m (33 ft) tall gnetum at Kompiai Village, Jimi Valley,
Western Highlands District, Papua New Guinea, 1600 m
(5200 ft) above sea level (1967). photo: h. mannerSpecies Profiles for Pacific Island Agroforestry (www.traditionaltree.org) 
Tolerances
Drought
The tree can tolerate several months of drought, assum­
ing soil moisture retention, seepage water, or irrigation
through the dry season.
Full sun
The tree can grow in full sun.
Shade
Gnetum is very tolerant of shade.
Frost
Its native range is frost free, so it is unlikely to tolerate
frost.
Waterlogging
The tree does not tolerate waterlogging.
Salt spray
The tree is intolerant of salt spray as it is not a coastal spe­
cies.
Wind
This species is a favored species in the arboriculture of the
Reef Islands because of its resistance to cyclones (Hender­
son and Hancock 1989 cited by Walter and Sam 2002).
Abilities
Regenerate rapidly
Gnetum is probably a rapid regenerator as evidenced by
its spontaneous growth in fallow forests. The tree has been
recommended for environmental protection (regreening)
programs (CABI 2003).
Coppice
The tree regrows readily from pruning. Pruning can be
used to control tree size, induce shoot flushing for harvest
of leaf vegetable, or to improve tree shape.
Other
It has a mycorrhizal association (with Scleroderma sinnamariense) that makes phosphorous and some micronutrients
more readily available (Cadiz and Florido 2002).
GrOWTH AnD DeVeLOPMenT
Growth rate
While the growth rate is moderate at 0.75–1.5 m/yr (2.5–5
ft/yr), the rate is probably higher when the tree is young
and in sunlight and lower when it is in the understory. In
experimental conditions, mycorrhizal inoculation appears
to enhance seedling growth under shaded conditions in
acidic soils (Salim et al. 2002).
Flowering and fruiting
Trees flower several times a year, with maximum fruiting
probably occurring with the rainy season. In Indonesia
gnetum flowers at least three times per year, with fruiting
coinciding with the rainy season (Cadiz and Florido 2001).
Fruiting begins within 5–8 years in seedlings.
Reaction to competition
There is little information as to the reaction to competition.
However, as this species can regenerate spontaneously in
fallow forests and is tolerant of shade and open conditions,
the species is probably a good competitor.
GneTUM GeneTICS
From an evolutionary perspective, Gnetum gnemon is
an interesting taxa, whose origin and relationships to
angiosperms are not completely understood. The plant
is a gymnosperm (seed plants with naked ovules),
which unlike angiosperms does not have flowers in the
true sense of the word. Chamberlain (1935) wrote that
the Gnetales arose during the Upper Cretaceous as a
branch of the Coniferales, which in turn evolved from
the Pteridophytes (ferns). However, because Gnetum
gnemon and other members of the order (Ephedra and
Welwitschia) have some characteristics also found in
the angiosperms (for example, leaves that look like
angiosperm leaves), some botanists believe that the
Gnetales are ancestors of the angiosperms (Chamber­
lain 1935). There is evidence suggesting that the pro­
cess of double fertilization in Gnetum gnemon evolved
in a common ancestor of angiosperms and Gnetales,
which are the closest living relatives of the flowering
plants (Carmichael and Friedman 1996). Additionally,
early phylogenetic analyses, based on morphological
similarities, placed the angiosperms and gnetophytes
in a clade called “anthophytes,” which emphasized
their shared possession of flower­like reproductive
structures (Winter et al. 1999). However, based on
genetic evidence, it appears that Gnetum gnemon is
more closely related to the conifers (in contrast to the
the anthophyte clade), and that the process of double
fertilization and the reproductive structures of the
angiosperms and gnetophytes evolved independently
(Winter et al. 1999).6 Gnetum gnemon (gnetum) 
PrOPAGATIOn
This species is fairly easily propagated. It can be propagated
by seed, air­layering, grafting, cutting, or budding (Cadiz
and Florido 2001). To propagate a few trees, an appropriate
method is to transplant volunteers from under a tree. Di­
rect­seeding in the field is a popular propagation method.
Propagation by seed
Seed collection
Large, mature fruits are collected from the ground. Em­
bryo development may not be complete when the fruit
drops, as full development of the embryo takes place on
the ground.
Seed processing
The outer skin is removed and the seeds air­dried in the
shade.
Seed storage
The seeds are classified as orthodox in terms of storage,
which means they remain viable when stored dry for ex­
tended periods.
Pre-planting treatments
No pre­planting treatments are recommended.
Growing area and media
The seed is pre­germinated in a bed of alternating layers
of seed and sand. The germination bed is kept in shady
conditions. Additional phosphorous may improve seed­
ling development. Inoculation with the mycorrhizae fungi
Scleroderma sinnamariense also improves seedling growth
(Cadiz and Florido 2001).
Germination
Seeds take 45–360 days to germinate (Cadiz and Florido
2001). The germination bed should be watered daily to has­
ten germination.
Time to outplanting
Germinated seedlings are transplanted to containers, where
they are raised for about 6 months prior to outplanting.
DISADVAnTAGeS
The species has no major drawbacks. Yield potential, prod­
ucts, and markets for gnetum products all require further
research.
Potential for invasiveness
Due to its shade tolerance, this species could be considered
a potential weed threat to native plant communities.
Diseases and pests
No major pests or diseases have been observed (Cadiz and
Florido 2001). The trees should be guarded against rats and
squirrels, which eat the seeds.
AGrOfOreSTrY/enVIrOnMenTAL
PrACTICeS
As an agroforest species, this tree serves as a trellis for yam
and other climbers. It also is used as a border species and
has some value as a soil enhancer.
Crop shade/overstory
The tree is used to provide shade for shade­loving plants
(Salim et al. 2002).
Homegardens
The tree is found occasionally in homegardens.
Improved fallows
It can be used for dryland rehabilitation and afforestation,
as it has the ability to improve soil physical properties
(Salim et al. 2002).
Boundary markers
Gnetum is grown along field borders (Cadiz and Florido
2001).
Windbreaks
It is cultivated in the Reef Islands because of its resistance
to cyclones (Walter and Sam 2002).
Host plant trellising
The tree is used as a support for yam and other shade­toler­
ant climbers (Thaman 1990).
Ornamental
The tree is attractive and can be pruned to size. Therefore it
is suitable for use in homegardens as an ornamental.
USeS AnD PrODUCTS
Gnetum is more utilized in Southeast Asia and Melanesia
(Vanuatu, Papua New Guinea, Solomon Islands, and Fiji)
than in the rest of the Pacific islands. The primary products
are the seeds and leaves for human consumption.
Nut/seed
The seeds are eaten raw, boiled, fired, or roasted. In East Species Profiles for Pacific Island Agroforestry (www.traditionaltree.org) 
Java, “blinjo” chips made from gnetum seeds are an impor­
tant home industry. The mature nuts are husked, mashed,
made into a small flat cake, and sun dried. The chips are
fried in oil and sold by street hawkers (Cadiz and Florido
2001, Anon nd:b). In Mejono village, East Java, chips are
manufactured by some 320 home­based companies that
employ 780 workers and produce 600 mt (660 t) of chips
per year (Yayuk nd.).
Leaf vegetable
In Vanuatu the leaves and young inflorescence are boiled
or braised in small bamboo pots and flavored with coco­
nut cream. In parts of Papua New Guinea, the leaves and
inflorescence are cooked with game, pork, or a sauce made
from red pulp of Pandanus conoideus. Gnetum gnemon var.
tenerum is an important leaf vegetable in southern Thai­
land (Verheij and Sukendar 1991).
Other vegetable
In addition to the young leaves, flowers and fruits are
used as vegetables, eaten raw, boiled, or roasted (Salim et
al. 2002). The outer flesh of the nut, ripe or unripe (still
green), can be fried to make a chewy snack or added to
other dishes (Potter 2004).
Medicinal
The leaf sap is used medicinally to cure an eye complica­
tion.
Timber
The wood is used for tool handles and house beams. In
Indonesia the wood is employed for paper pulp and house
construction. In Malaysia and Hong Kong the wood is
used for paper, boxes, and house construction (Agroforestry
2005).
Fuelwood
The wood can be burned for firewood.
Rope/cordage/string
The bast fibers are used to make cordage for fishing lines,
fishnets, and string bags (known in New Guinea pidgin
as bilum). The fiber is durable in seawater. The fiber is also
used for a well known musical bowstring (Verheij and
Sukendar 1991).
Other
The fungus Scleroderma sinnamariense, a usual mycorrhizal
associate of gnetum, produces a fruiting body that is ed­
ible.
COMMerCIAL PrODUCTS
As described above, the pounded and dried nuts form the
basis of an important home industry in Java, Indonesia.
Cadiz and Florido (2001) state that the chips are an Indo­
nesian export. A potential economic use of this plant is the
utilization of its bark in rope making (Salim et al. 2002).
Spacing
Trees are planted 5–12 m (16–40 ft) apart in fields prepared
by removing weeds and shrubs.
Management objectives
After planting, occasional weeding is required (Cadiz and
Florido 2001, Verheij and Sukendar 1991). Trees can be
pruned to encourage new shoot growth for leaf vegetable.
It is not known how harvesting of shoots affects fruiting,
as the inflorescences are borne both on young shoots and
older branches (Verheij and Sukendar 1991).
Advantages and disadvantages of growing in
polycultures
Advantages of gnetum include shade tolerance and amena­
bility to cultivation. Additionally, the tree provides useful
nuts and a leaf vegetable throughout its life, which can be
100 years or longer.
Yields
In West Sumatra, large trees are said to yield 20,000–
25,000 fruits per year. The maximum production of nuts is
projected to reach 80–100 kg/tree/yr (176–220 lb/tree/yr)
(Cadiz and Florido 2001).
Processing required
Processing the seeds, such as in the making of blinjo chips,
can greatly enhance marketability of gnetum.
InTerPLAnTInG/fArM
APPLICATIOnS
Example system 1 (CABI 2003)
Gnetum gnemon var. tenerum plants are raised from seed,
air­layers or root suckers and planted 2 m (6.6 ft) apart,
usually as intercrop among durian (Durio spp.), rambutan
(Nephelium lappaceum), Parkia sp., etc., to benefit from the
shade of the trees.
Example system 2 (Ragone 2004)
Gnetum is grown for its edible leaf in Artocarpus camansi   Gnetum gnemon (gnetum) 
and Pandanus orchards in the Jimi Valley, Papua New
Guinea.
PUBLIC ASSISTAnCe AnD
AGrOfOreSTrY eXTenSIOn
Extension offices for agroforestry and forestry in the Pa­
cific: http://www.traditionaltree.org/extension.html
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are more closely related to conifers than to flowering plants.
PNAS Online 96(13): 7342–7347. content/full/96/13/7342>.
Yayuk. nd. On East Java: Blinjo chips (Gnetum gnemon). www.petra.ac.id/eastjava/cities/kediri/chips.htm>.Species Profiles for Pacific Island Agroforestry (www.traditionaltree.org) 
Traditional Tree Initiative—Species Profiles for Pacific Island Agroforestry (www.traditionaltree.org)
Gnetum gnemon (gnetum)
Authors: Harley I. Manner
1
and Craig R. Elevitch
2
1. University of Guam, College of Arts and Sciences, UOG Station, Mangilao, GU 96923 USA; Tel: 671­735­2874; Fax: 671­734­5255;
E­mail: hmanner@uog9.uog.edu
2. Permanent Agriculture Resources, PO Box 428, Holualoa, Hawaii 96725 USA; Tel: 808­324­4427; Fax: 808­324­4129; E­mail:
par@agroforestry.net; Web: http://www.agroforestry.net
Acknowledgments: The authors and publisher thank Dale Evans, Diane Ragone, and Barry Tomlinson for their input. Photos con­
tributed by Gerry Carr and Barry Tomlinson are greatly appreciated.
Recommended citation: Manner, H.I., and C.R. Elevitch. 2006. Gnetum gnemon (gnemon), ver. 1.1. In: Elevitch, C.R. (ed.). Species
Profiles for Pacific Island Agroforestry. Permanent Agriculture Resources (PAR), Hōlualoa, Hawai‘i. org>.
Sponsors: Publication was made possible by generous support of the United States Department of Agriculture Western Region Sus­
tainable Agriculture Research and Education (USDA­WSARE) Program; SPC/GTZ Pacific­German Regional Forestry Project;
USDA Natural Resources Conservation Service (USDA NRCS); State of Hawai‘i Department of Land & Natural Resources Divi­
sion of Forestry & Wildlife; and the USDA Forest Service Forest Lands Enhancement Program. This material is based upon work
supported by the Cooperative State Research, Education, and Extension Service, U.S. Department of Agriculture, and Agricultural
Experiment Station, Utah State University, under Cooperative Agreement 2002­47001­01327.
Series editor: Craig R. Elevitch
Publisher: Permanent Agriculture Resources (PAR), P.O. Box 428, Hōlualoa, Hawai‘i 96725, USA; Tel: 808­324­4427; Fax: 808­324­
4129; E­mail: par@agroforestry.net; Web: http://www.agroforestry.net. This institution is an equal opportunity provider.
Reproduction: Copies of this publication can be downloaded from http://www.traditionaltree.org. This publication may be repro­
duced for noncommercial educational purposes only, with credit given to the source. © 2006 Permanent Agriculture Resources. All
rights reserved.
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Gnetum gnemon
From Wikipedia, the free encyclopedia
Gnetum gnemon

Scientific classification
Kingdom: Plantae
Division: Gnetophyta
Class: Gnetopsida
Order: Gnetales
Family: Gnetaceae
Genus: Gnetum
Species: G. gnemon
Binomial name
Gnetum gnemon
L.


Gnetum gnemon
Gnetum gnemon is a species of Gnetum native to southeast Asia and the western Pacific Ocean islands, from Assam south and east through Indonesia and Malaysia to the Philippines and Fiji. Common names include melinjo or belinjo (Indonesian language), bago (Malay language, Tagalog language), muling (Aceh language) peesae (Pattani Malay), dae (Kwara'ae language), phakmiang (Thai language) and bét, rau bép, rau danh or gắm (Vietnamese language). They are sometimes called padi oats or paddy oats.
It is a small to medium-size tree (unlike most other Gnetum species, which are lianas), growing to 15–20 m tall. The leaves are evergreen, opposite, 8–20 cm long and 3–10 cm broad, entire, emerging bronze-coloured, maturing glossy dark green. The fruit-like strobilus consist of little but skin and a large nut-like seed 2–4 cm long inside.
Fleshy strobili weigh about 5.5 g, the seed alone 3.8 g. Strobili mature mainly from June to September in NE Philippines. The red strobili are eaten by birds, mammals and reptiles.

Contents [hide]
1 Uses
2 Phytochemicals
3 References
4 External links
[edit]Uses



Dimer Resveratrol Structure
Melinjo is native to Indonesia and very popular in this country. It is widely used in Indonesian cuisine. The seeds are used for sayur asem (sour vegetables soup) and also, ground into flour and deep-fried as crackers (emping, a type of krupuk). The crackers have a slightly bitter taste and are frequently served as a snack or accompaniment to Indonesian dishes. The leaves are also commonly used for vegetables dishes in Indonesia.
This plant is commonly cultivated throughout the Aceh region and is regarded as a vegetable of high status. Its flower, young leaves and fruit are used as ingredients in traditional vegetable curry called kuah pliek. This dish is served on all important traditional occasions, such as khanduri and keureudja. In the Pidie district, the women pick the ripe fruit (its skin color is red) and make keureupuk muling from it.
Melinjo crackers were part of the dinner menu during Barack Obama's state visit to Indonesia in 2010, where he praised the crackers, alongside the Bakso (meatball soup) and the Nasi Goreng (fried rice), as being delicious. [1]
Recently, Japanese scientists found that Gnetum gnemon is not the cause of gout (uric acid disease).[2]
At the present, Melinjo Extract is produced and supervised under cooperation between Indonesian Agricultural Association (NOFA (id:KTNA) ; Ikamaja's Mother Organization) and JASMELINDO (Japanese Non-Profit Organization), to protect certain profit for Indonesian farmers.
[edit]Phytochemicals

Recently, it has been discovered that melinjo strobili is rich in a stilbenoid composed of resveratrol and identified as a dimer. This result was published in XXIII International Conference on Polyphenols, Canada, in 2006.[citation needed]
Melinjo resveratrol, having antibacterial and antioxidative activity,[3] works as a food preservative, off flavour inhibitor and taste enhancer.[4] This species may have applications in food industries which do not use any synthetic chemicals in their processes.
Four new stilbene oligomers, gnemonol G, H, I and J, were isolated from acetone extract of the root of Gnetum gnemon along with five known stilbenoids, ampelopsin E, cis-ampelopsin E, gnetin C, D and E.[5]
The extraction of dried leaf of Gnetum gnemon with acetone water (1:1) gave C-glycosylflavones (isovitexin, vicenin II, isoswertisin, swertisin, swertiajaponin, isoswertiajaponin).[6]
The separation of a 50% ethanol extract of the dried endospoerms yielded gnetin C, gnetin L (new stilbenoid), gnemonosides A, C and D, and resveratrol which were tested for DPPH radical scavenging action, antimicrobial activity and inhibition of lipase and α-amylase from porcine pancreas.[7] Gnetin C showed the best effect among these stilbenoids.
Oral administration of the 50% ethanol extract of melinjo fruit at 100 mg/kg/day significantly enhanced the production of the Th1 cytokines IL-2 and IFN-γ irrespective of concanavalin-A stimulation, whereas the production of the Th2 cytokines IL-4 and IL-5 was not affected. New stilbene glucosides gnemonoside L and gnemonoside M, and known stilbenoids resveratrol, isorhapontigenin, gnemonoside D, gnetins C and E were isolated from the extract. Gnemonoside M strongly enhanced Th1 cytokine production in cultured Peyer's patch cells from mice at 10 mg/kg/day.[8]

[edit]References

^ Siahaan, Armando; Camelia Pasandaran (November 10, 2010). "Cheering, Bakso and Friendship – An Indonesian Welcome Home for Obama". The Jakarta Globe.
^ Mori, M., et al. (2008). Relationship between Lifestyle-related Diseases with The Intake of Indonesian Traditional Fruit Melinjo Rich in Phytoestrogens. Niigata, Japan. The 4th International Niigata Symposium on Diet and Health Integrative Function of Diet in Anti-aging and Cancer Prevention.
^ Hisada, H., et al. (2005). Antibacterial and Antioxidative Constituents of Melinjo Seeds and Their Application to Foods. Japan. Science Links Japan.
^ Santoso, M., et al..(2008). Inhibition of Fish Lipid Oxidation by the Extract of Indonesia Edible Plant Seed `Melinjo`. Kyoto, Japan. Japanese Society for Food Science and Technology.
^ Four New Stilbene Oligomers in the Root of Gnetum gnemon. Ibrahim Iliya, Zulfiqar Ali, Toshiyuki Tanaka, Munekazu Iinuma, Miyuki Furusawa, Ken-ichi Nakaya, Jin Murata and Dedy Darnaedi, Helvetica Chimica Acta, Volume 85, Issue 8, pages 2538–2546, August 2002, DOI: 10.1002/1522-2675(200208)
^ Wallace, J.W. et al..(1978). C-Glycosylflavones in Gnetum gnemon, Phytochemistry, volume 17, pages 1809-1910.
^ Kato, E., et al. (2009). Stilbenoids Isolated from the Seeds of Melinjo (Gnetum gnemon L.) and Their Biological Activity. Japan. J. Agric Food Chem, 57 (6), 2544-2549.
^ Kato, H., et al. (2011). Stilbenoids from the Melinjo (Gnetum gnemon L.) Fruit Modulate Cytokine Production in Murine Peyer's Patch Cells Ex Vivo, Planta Med. Jan 25.
[edit]External links

Wikispecies has information related to: Gnetum gnemon
Media related to Gnetum gnemon at Wikimedia Commons
http://www.ncbi.nlm.nih.gov/pubmed/21267811
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