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628 UDDIN, M.M.; RAHMAN, M.S.; spathulenol (5.57%), β-pinene (4.71%), δ-
AHMED, G.M.; HOSSAIN, M.A. & SAMAD,
A. (BCSIR Laboratories, Rajshahi). Variation in
Lipid Content and Glyceride Compositions of Four
Different Varieties of Corn (Zea mays L.) Oil.
Bang. J. Sci. Ind. Res, 2007, 42(2), 223-228.
Oil extracted from four different varieties of corn
(Zea mays) were evaluated in terms of lipid,
glyceride and fatty acid compositions. The total
lipid extracts were fractionated into lipid classes by
silicic acid chromatography. The neutral lipids
were found to be 96.80 - 97.50 %; glycolipid 1.50-
1.66 %; phospholipid 0.80-0.95 % respectively.
The fatty acid composition of triglyceride (TG)
fraction was analysed by gas liquid
chromatography (GLC). The percentage
composition of fatty acid were found to be linoleic
acid 35.62 to 49.5 %, palmitic acid 8.7 to 9.9 %,
stearic acid 1.9 to 2.3 %, myristic acid 0.9 to 1.6 %
and linolenic acid 0 to 2.2 %.
668.5 : CHEMICAL TECHNOLOGY :
ESSENTIAL OILS
629 BHUIYAN, M.N.I.; CHOWDHURY,
J.U.; MOBAROK, M.H.; NANDI, N.C. &
YUSUF, M. (BCSIR Laboratories, Chittagong).
Chemical composition of leaf and fruit essential oil
of Piper nigrum L. from Bangladesh. Bang. J. Life
Sci., 2007, 19(2), 109-114.
The chemical composition of the essential oil
obtained from the leaves and dried fruits of black
pepper ( Piper nigrum L.) from Bangladesh was
examined by GCMS. About 46 & 28 compounds
have been identified in the leaves and fruits oils of
this species, accounting for more than 09.04% and
100% of the oils, respectively. The major
components of leaves oils were terpinolene
(17.17%), γ-elemene (13.50%), δ-cadinol (8.61%),
α-chamigrene (6.05%), α-cubebene (5.87%),
227
cadimene (4.19%) and α-longipinene (4.06%),
while the dried fruits contain caryophyllene
(26.13%), Z-ocimene (18.61%), limonene
(15.15%), β-pinene (8.08%), α-selinene (5.19%),
α-pinene (4.65%), α-caryophyllene (3.18%) and β-
myreene (3.01%).
630 CHOWDHURY, J.U.; NANDI, N.C.;
UDDIN, M. (BCSIR Laboratories, Chittagong) &
RAHMAN, M. (IGCRD, BCSIR, Dhaka).
Chemical Constituents of Essential Oils from Two
Types of Spearmint (Mentha spicata L. and M.
cardiaca L.) Introduced in Bangladesh. Bang. J.
Sci. Ind. Res., 2007, 42(1), 79-82.
Mentha spicata and M. cardiaca introduced in
Bangladesh were studied for their essential oil
content and compositions of the oil. The essential
oil from M. spicata contains carvone (73.29 %), d-
limonene (7.59 %) and dihydrocarvone (3.83 %) as
major constituents out of the 21 components. The
essential oil from M. cardiaca contains carvone
(60.9 %) and limonene (21.58 %) as major
constituents out of the 35 components.
631 CHOWDHURY, J.U.; NANDI, N.C.;
UDDIN, M.; RAHMAN, M. & HOSAIN, M.E.
(BCSIR Laboratories, Chittagong). Growth, Yield,
Oil Content and Composition of Cymbopogon
jwarencusa in Bangladesh. Bang. J. Sci. Ind. Res.,
2006, 41(1 & 2), 97-100.
Cymbopogon jwarencusa, an aromatic grass
recently introduced in Bangladesh was studied for
its growth, yield, oil content and composition of
the oil. The herbage yield and oil content were
highest in 2nd and 1st cutting respectively. Among
the thirty three compounds identified by GC- MS,
piperitone (85 %) was the single major compound
in the oil. Among others, eucalyptol (2.2 %),
camphene (2 %> and β-elemene (1.4 %) are
mentionable.