Browsing by Author "A. Sen Gupta"

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Composition of the seed fats of the Capparidaceae family
(1964) A. Sen Gupta; M.M. Chakrabarty
The component fatty acids of the seed fats of Gynandropsis pentaphylla and Capparis aphylla, both of the Capparidaceae family, have been investigated. The present analysis indicates the percentage composition of the mixed fatty acids to be: myristic 0.3, 0.6; palmitic 18.3, 21.1; stearic 8.1, 7.7; arachidic 2.0, 2.0; oleic 15.4, 57.2; linoleic 53.9, 11.4; and linolenic 2.0, 0.0, respectively. G. pentaphylla appears to be different from the other members of this family of tropical origin in producing seed fat with such high proportion of linoleic acid, while the seed fat of C. aphylla is unusually rich in oleic acid. The present findings do not support the view of Eckey14 that the presence of similar proportions of palmitic and stearic acids is a typical feature of this family. Copyright © 1964 John Wiley & Sons, Ltd
The component fatty acids of chaulmoögra oil (Taraktogenos kurzii, king)
(1963) A. Sen Gupta; S.C. Mutha; A.P. Waghrey
The fatty acid composition of the seed fat of Taraktogenos kurzii has been investigated by carrying out the preliminary resolution of the mixed fatty acids into 13 fractions by low‐temperature crystallisation followed by urea adduction and by subsequent identification of the component acids of each fraction by paper chromatography. The presence and the quantity of linoleic acid has been established by ultra‐violet spectrophotometry. The composition of the mixed fatty acids as established in the present work consists of chaul‐moögric 21.0%; hydnocarpic 19.6%; palmitic 5.8%; myristic 5.9%; gorlic 26.6%; oleic 11.3% and linoleic 4.4%. A gel‐like substance of unestablished composition amounting to 5.4%, probably a mixture of partially polymerised/oxidised unsaturated acid was also obtained. The results agree with those of earlier workers for the percentages of chaul‐moögric, gorlic, oleic and palmitic acids concerned, but not of hydnocarpic acid. The presence of linoleic and myristic acids in this seed fat has been established for the first time. Copyright © 1963 John Wiley & Sons, Ltd
The component fatty acids of Citrullus colocynthis seed fat
(1964) A. Sen Gupta; M.M. Chakrabarty
The composition of the seed fat of Citrullus colocynthis as established by the present investigation is palmitic 10.40%; stearic 6.52%; arachidic 1.70%; oleic 20.92%; linoleic 58.81%; and linolenic 1.65%. This composition agrees largely with the general trend of the family and of the genus Citrullus specifically, being rich in total unsaturation (81.9%) with linoleic acid as the major component. The presence of conjugated triene has not been detected. The results show the influence of environmental factors on the composition of the seed fat when compared with that of the seed fat of Algerian origin. The composition indicates the possible use of the oil for edible and non‐edible purposes. Copyright © 1964 John Wiley & Sons, Ltd