P. P. Jain , Ravindra Singh , Shalini Bhadula

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In this paper distribution of Neem trees, potential of seeds, export of Neem seeds, quantity of Neem seeds processed, production and export of Neem seed oil, properties and uses of oil and deoiled meal have been given.

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P. P. Jain , Sushma Mahajan

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The toxicological studies, as given in the present paper, have revealed that no mortality of test animals was observed with refined/treated oil samples. However, sub-acute toxicity study, following oral route of the oil samples, may be required to arrive at fine conclusion. The preliminary studies, as given in the present paper, indicate that Jatropha curcas seed oil can be helpful in solving the problem of shortage of edible oils in the country, to some extent if a methodology is worked out to remove constituents responsible for inducing purging.

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P. P. Jain , N. P. Dobhal , R. P. Sethi , K. S. Ayyar

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Kernels constituting 45.5% of seeds of Albizia procera, Benth yielded 16.8% of a fixed oil which had acid value, 13.66; saponification niue, 178.28; iodine value (Wij's method), 102.51 and unsaponifiable. Matter, 4.11 per cent. Fatty acid composition. As determined by glc, is palmitic acid, 25.40; stearic acid, 4.93; oleic acid, 20.18; linoleic acid, 44.45; arachidic acid, 2.80 and behenic acid, 2.24 per cent. Fatty acid composition of the prescnt sample tallies to some extent with the results reported by Joshi et al. from Raipur (M.P), having linoleic acid as the major constituent wbich is also important from the nutritional point of view. Farooq et al. from Aligarh have reported oleic acid as the major constituent (50.89%).

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P. P. Jain , N. P. Dobhal , Rajendra Pal , K. S. Ayyar

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Results of analysis carried out on 31 forestry species have shown that oil contents of seeds of Abies pindrow. Picea smithiana. Pirus roxburghii, Prinsepia utilis, Schima wallichii and Viburnum cylindricum range from 18.77 to 28.7% and hence may be considered as good for their commercial exploitalion provided sufficient quantities of these seeds can be made available at reasonable rates. Seeds of Adenanthera microsperma and Albizia procera are hard. Hence special type of decorticators are required for separating the kernels. Seeds of Lannea coromandelica and Michelia champaca contain low percentages of kernels the oil contents of which are good. The seeds of other species cannot be considered as oil seeds.

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P. P. Jain , N. P. Dobhal , K. S. Ayyar

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The kernel (48.8% of seeds) of Olea dioica Roxb received from Nasik (Maharashtra) yielded 24.54% of a fixed oil' having refractive index' 1.4369/25°C; acid value' 42.35' saponification value' 208.97 and Iodine value' 87.67. Gas-liquid chromatographic analysis of the mixed acids has shown the fatty acid composition as palmitic' 24.10%; arachidic' 7.93%; behenic' 0.77%; Oleic' 41.45%; linoleic' 15.04% and others (unidentified acids), 10.71%. The seed oil may be recommended for edible use after ascertaining its non-toxic nature.

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P. P. Jain , R. K. Suri , S. K. Deshmukh , K. C. Mathur

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Fatty oils extracted from seed of Cassia tora Linn., Wrightia tomentosa Roem &Schult., Viburnum coriaceum Blume, Michelia champaca Linn., Pongamia pinnato and Azadirachta indica A Juss., have been tested in vitro against five species of bacteria i.e. Bacillus pumilus Gottheil, Bacillus subtilis Cohn, Salmonella typhosa (Zopf) white syn. Salmonella typhi Warren and Scott., S paratyphi (Kayer) Casteliani and Chalmers and Micrococcus pyogens var. albus (Rosenbach, Schroeten) Syn. Staphylococcus albus Rosenbach. Present investigations reveal that all the above mentioned fatty oils have potent antibacterial efficay against Bacillus subtilis, Salmonella typhosa and S paratyphi.

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M. P. Shiva , P. P. Jain

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Studies to determine the appropriate month of harvesting of Eucalyptus hybrid leaves in order to have optimum yield of essential oil have been reported in this paper.

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R. K. Suri , P. P. Jain , B. K. Sharma

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N. K. Gulati , R. R. Fernandez , P. P. Jain

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The paper deals with the Initial introduction and trial cultivation of Solanum laciniatum at New Forest, Dehra Dun from a small quantity of seeds received from ICAR Solan based project. Indicative yield of berries, as well as leaves, ischolar_mains and stem together with the solasodine content in each part has been given.

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M. P. Shiva , P. P. Jain , R. K. Suri , Jagat Ram , N. K. Gulati

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The paper furnishes the details of chemical studies undertaken on that effect of storage of Eucalyptus hybrid leaves stored both in open and shade. The results revealed that there is no significant difference in the quality and quantity of oil recovered from leaves after storage and that the entrepreneurs can safely distill the oil from leaves conveniently if they are not able to recover the oil from leaves immediately after felling of trees in the forest.

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B. K. Sharma , P. P. Jain

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The paper describes the results of the experiments conducted on the effect of collection and storage of Sal (shorea robusta Gaertn) seed kernels for a period ranging from 15 to 150 days stored under various condition. The yield and quality of the oil extracted from stored kernels after stipulated periods have been determined for the acid, eater and iodine values the effect of storage on the quality of the sal seed fat stored for one year has also been examined.

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P. P. Jain

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Methods for the production of katha and cutch from Acacia calechu (khair) wood, have been described. Information on the suitability of the raw-material ie. Khair wood quality of katha, figures of production and requirements of katha in the country, have been given. Suggestions have also been given to meet the increasing requirements of khair wood and the aspects on which work be taken up.

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B. K. Sharma , V. P. S. Verma , P. P. Jain

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Valeriana officinalis Linn, is the source of true valerian and an essential oil, well known in drug trade for use in medicine and an a perfume. It is in fairly good demand in India but does not appear to be cultivated anywhere in the country on commercial scale. The requirement is, therefore, met through imports for which no figures are avai1able. True valerian oil is one of the very costly essential oils; priced Rs 2000/per kg approximately, which is prohibitive and restricts its free use. Instead, the Inferior Indian valerian from Valeriana jatamansi Jones. syn. V. wallichii DC is used as a substitute. In order, therefore, to meet the country's requirement and to save the foreign exchange, the necessity of cultivating a suitable strain of Valeriana officinalis, was felt. Accordingly, seeds of an exotic strain of V. officinalis (from U.S.S.R.) were procured and trials were undertaken in Chakrata Hills (alt. 2150 m), District Dehra Dun, India. The results of cultivation and exploitation are mentioned. Also, the yields of rhizomes/ischolar_mains ,(valerian) and their oil content alongwith its physico-chemical constants, are given.

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H. S. Rao , M. P. Shiva , P. P. Jain

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The scope of recovering Eucalyptus oil from leaves of Eucalyptus tereticornis Sm. and E. camaldulensis Dehn. have been presented in this paper, in view of the large scale plantations that are being extended in our country. The percentage yield of Eucalyptus oil, optimum conditions for distillation and physico-chemical properties of the all have been determined. The physico-chemical properties have been further compared with the limits of results as published by E. Guenther, which reveal that oils obtained from leaves of Eucalyptus teriticornis and E. camaldulensis growing in New Forest, Dehra Dun are closely comparable with existing standards. It is assumed that with the bulk quantities of leaves that can be available in the country, it will be worthwhile to recover essential oil and explore possibilities for its industrial utilization.

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