1. Seed pods ( fruits ) of Hibiscus cannabinus, Deccan Hemp
….Trái c?a cây ?ay Cách, Kê-náp ….
Vietnamese named : Kê-náp, ?ay Cách
English names : Kenaf (Persian origin), Deccan Hemp, Java Jute, Brown Indian Hemp.
Scientist name : HibiscuS cannabinus L.
Synonyms : Abelmoschus verrucusus, Hibiscus verrucusus
Family : Malvaceae. H? Bông B?p
Searched from :
**** Y H?C C? TRUY?N TU? T?NH
www.lrc-tnu.edu.vn/dongy/show_target.plx?url=/thuocdongy/…
Kê náp – Hibiscus cannabinus L., thu?c h? Bông – Malvaceae.
Mô t?: Cây th?o m?c h?ng n?m cao ??n 3,5m, ít nhánh hay có khi không nhánh do tr?ng sít
nhau; thân có gai nh?, hay không có. Lá có phi?n to 10-15cm, th??ng chia 3-5 thu?, g?n nh?
không lông; cu?ng dài. Hoa ??n ??c ? nách lá; lá ?ài ph? 7-10, cao 7-10mm; tràng tr?ng hay
ngà, ?? ??m ? gi?a. Qu? nang tròn, có lông n?m vàng; h?t bóng, màu nâu.
Ra hoa qu? quanh n?m.
B? ph?n dùng: Lá, h?t – Folium et Semen Hibisci Cannabini.
N?i s?ng và thu hái: G?c ? Phi châu, ???c tr?ng ?? l?y s?i.
Thành ph?n hoá h?c: H?t ch?a d?u béo gi?ng nh? d?u L?c, có radium, thorium, rubidium. Cánh
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2. hoa ch?a glucosid cannabiscitrin và flavonol cannabiscetin.
Tính v?, tác d?ng: H?t kích d?c, làm béo. Lá có v? chua, có tác d?ng ki?n v?, x?.
Công d?ng: D?ch lá l?n ???ng và H? tiêu dùng trong thi?u n?ng m?t v?i ?? chua m?nh. H?t
dùng ngoài ??p v?t th??ng ?au và b?m gi?p. V? thân dùng ?? làm dây và làm nguyên li?u d?t
bao t?i và l??i ?ánh cá; h?t ép d?u dùng ?? ch? xà phòng.
_____________________________________________________
**** WIKI
en.wikipedia.org/wiki/Kenaf
Kenaf [Etymology: Persian],[1] Hibiscus cannabinus, is a plant in the Malvaceae family. Hibiscus
cannabinus is in the genus Hibiscus and is probably native to southern Asia, though its exact
natural origin is unknown. The name also applies to the fibre obtained from this plant. Kenaf is
one of the allied fibres of jute and shows similar characteristics. Other names include Bimli,
Ambary, Ambari Hemp, Deccan Hemp, and Bimlipatum Jute.It is labelled as Gongoora in
Indian, Korean, American food and groceries chains in the United States. Gongoora is from
Telugu. For Telugus it is a favourite food leaf. It is cooked with daal and eaten as saag. They
even prepare a kind of pickle with the leaves that lasts for one or two years. It is said to be rich
in Iron.
It is an annual or biennial herbaceous plant (rarely a short-lived perennial) growing to 1.5-3.5 m
tall with a woody base. The stems are 1–2 cm diameter, often but not always branched. The
leaves are 10–15 cm long, variable in shape, with leaves near the base of the stems being
deeply lobed with 3-7 lobes, while leaves near the top of the stem are shallowly lobed or
unlobed lanceolate. The flowers are 8–15 cm diameter, white, yellow, or purple; when white or
yellow, the centre is still dark purple. The fruit is a capsule 2 cm diameter, containing several
seeds.
Uses
Kenaf is cultivated for its fibre in India, Bangladesh, United States of America, Indonesia,
Malaysia, South Africa, Viet Nam, Thailand, parts of Africa, and to a small extent in southeast
Europe. The stems produce two types of fibre, a coarser fibre in the outer layer (bast fibre), and
a finer fibre in the core. It matures in 100 to 200 days. Kenaf was grown in Egypt over 3000
years ago. The kenaf leaves were consumed in human and animal diets, the bast fibre was
used for bags, cordage, and the sails for Egyptian boats. This crop was not introduced into
southern Europe until the early 1900s. Today, principal farming areas are China, India, and it is
also grown in many other countries such as the US, Mexico and Senegal.
The main uses of kenaf fibre have been rope, twine, coarse cloth (similar to that made from
jute), and paper. In California, Texas, Louisiana and Mississippi 3,200 acres (13 km²) of kenaf
were grown in 1992, most of which was used for animal bedding and feed.
Uses of kenaf fibre include engineered wood, insulation, clothing-grade cloth, soil-less potting
mixes, animal bedding, packing material, and material that absorbs oil and liquids. It is also
useful as cut bast fibre for blending with resins for plastic composites, as a drilling fluid loss
preventative for oil drilling muds, for a seeded hydromulch for erosion control. Kenaf can be
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3. made into various types of environmental mats, such as seeded grass mats for instant lawns
and moldable mats for manufactured parts and containers. Panasonic has set up a plant in
Malaysia to manufacture kenaf fibre boards and export them to Japan.
Kenaf seed oil
Kenaf seeds yield a vegetable oil that is edible with no toxins.[citation needed] The kenaf seed
oil is also used for cosmetics, industrial lubricants and for biofuel production. Kenaf oil is high in
omega polyunsaturated fatty acids (PUFAs) which are now known to help in keeping humans
healthy. Kenaf seed oil contains a high percentage of linoleic acid (Omega-6) a polyunsaturated
fatty acid (PUFA). Linoleic acid (C18:2) is the dominant PUFA, followed by oleic acid (C18:1).
Alpha-linolenic acid (C18:3) is present in 2 to 4 percent. The PUFAs are essential fatty acids for
normal growth and health. Furthermore, they are important for reducing cholesterol and heart
diseases.
Kenaf Seed oil is 20.4% of the total seed weight which is similar to cotton seed.[citation needed]
Kenaf Edible Seed Oil Contains:
Palmitic acid: 19.1%
Oleic acid: 28.0% (Omega-9)
Linoleic acid: 45% (Omega-6)
Stearic acid: 3.0%
Alpha-linolenic acid: 3% (Omega-3)
Kenaf paper
The use of Kenaf in paper production offers various environmental advantages over producing
paper from trees. In 1960, the USDA surveyed more than 500 plants and selected kenaf as the
most promising source of "tree-free" newsprint. In 1970, kenaf newsprint produced in
International Paper Company’s mill in Pine Bluff, Arkansas, was successfully used by six U.S.
newspapers. Printing and writing paper made from the fibrous kenaf plant has been offered in
the United States since 1992. Again in 1987, a Canadian mill produced 13 rolls of kenaf
newsprint which were used by four U.S. newspapers to print experimental issues. They found
that kenaf newsprint[2] made for stronger, brighter and cleaner pages than standard pine paper
with less detriment to the environment. Due partly to kenaf fibres being naturally whiter than tree
pulp, less bleaching is required to create a brighter sheet of paper. Hydrogen peroxide, an
environmentally-safe bleaching agent that does not create dioxin, has been used with much
success in the bleaching of kenaf.
Various reports suggest that the energy requirements for producing pulp from kenaf are about
20 percent less than those for wood pulp, mostly due to the lower lignin content of kenaf. Many
of the facilities that now process Southern pine for paper use can be converted to accommodate
kenaf.[citation needed]
An area of 1-acre (4,000 m2) of kenaf produces 5 to 8 tons of raw plant bast and core fibre in a
single growing season. In contrast, 1-acre (4,000 m2) of forest (in the US) produces
approximately 1.5 to 3.5 tons of usable fibre per year. It is estimated that growing kenaf on
5,000 acres (20 km²) can produce enough pulp to supply a paper plant having a capacity of 200
tons per day. Over 20 years, 1-acre (4,000 m2) of farmland can produce 10 to 20 times the
amount of fiber that 1-acre (4,000 m2) of Southern pine can produce.[3]
As one of the world’s important natural fibres, kenaf is covered by the International Year of
Natural Fibres 2009.
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4. **** PHILIPPINE MEDICINAL PLANTS
www.stuartxchange.org/AlasDoce.html
Family • Malvaceae
A las doce
Hibiscus cannabinus Linn.
BROWN INDIAN HEMP
Botany
Herb with smooth and prickly stems. Lower leavers are entire and heart-shaped; upper ones are
deeply palmately-lobed. Sepals are bristly, lanceolate and connate below the middle, with a
gland at the back of each. Corolla is large, spreading, yellow with a crimson center. Capsules
are rounded and bristly. Seeds are smooth.
Distribution
Ornamental cultivation.
Found in the Bontoc and Pangasinan provinces and in Manila.
Chemical constituents and characteristics
Seeds yield 23.5% fixed oil.
Whole plant has abundant polysaccharides, 9.7%; starch, dextrin, pectin, tannin, phosphatide,
protein.
Parts used
Leaves and flowers.
Uses
Folkloric
Leaves used as purgative.
Infusion used for coughs.
Flowers used for biliousness and constipation.
Seeds yield an oild used externally for pains and bruises; and internally as an aphrodisiac.
In India and Africa, used for blood and throat disorders, bilious condtions, fever and puerperium.
Others
Cultivated for its fiber.
Leaves used as a pot-herb.
Studies
• Haematinic Activity: Study on hemolytic anemic rats induced by phenylhydrazine showed the
leaf extract of H cannabinus induced a significant increase in RBC count, Hb concentration and
pack cell volume. Results suggest H cannabinus leaves may have hematinic properties.
• Phytochemicals / Fungitoxic Activity: Essential leaf oil characterized 58 components, among
them: (E)-phytol, (Z)-phytol, n-nonanal, benzene acetaldehyde, (E)-2-hexenal and
5-methylfurfural as major constituents. Oil had antifungal activity against Colletrotrichum
fragariae, C gloeosporioides and C accutatum.
• Antioxidant Activity: Study results suggest that the leaves of H cannabinus possess
erythrocyte protective activity against drug induced (carbon-tetrachloride or paracetamol)
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5. oxidative stress.
• Immunomodulatory: Study showed crude extract of H cannabinus fresh leaves significant
suppressed TNF-a production and mRNA expression of IL-3 and IL-12, with induction of
expression of a potent cytoprotective molecule. Results suggest that H cannabinus may be able
to modulate macrophage-mediated responses.
• Hepatoprotective: Aqueous leaf extract showed significant hepatoprotective activity against
carbon tetrachloride and paracetamol induced damage evidenced by absence of necrosis in
liver cells of pretreated rats. Inhibition of lipid peroxidation is suggested as a possible
mechanism.
Availability
Wild-crafted.
Cultivated.
**** HORT.PURDUE.EDU
www.hort.purdue.edu/newcrop/duke_energy/hibiscus_cannabin…
**** FLOWERSOFINDIA
www.flowersofindia.net/catalog/slides/Deccan%20Hemp.html
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