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INTERNATIONAL JOURNAL OF PHARMACEUTICAL RESEARCH

A Step Towards Excellence

IJPR included in UGC-Approved List of Journals - Ref. No. is SL. No. 4812 & J. No. 63703

Published by : Advanced Scientific Research
ISSN
0975-2366
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IJPR 9[3] July - September 2017 Special Issue

July - September 9[3] 2017

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Need to Discontinue the Use of Solvents for the Extraction of Edible Oils for Ensuring Safety of Public Health

Author: UPLOADED BY-ADMIN, POONAM KUSHWAHA
Abstract: Numerous solvents of diverse nature are frequently utilized in a variety of food manufacturing processes. Fats, oils, grains, coffee and tea are some of the food products in which various solvents are used for the extraction procedure. The quality and stability of these food products can be affected by the presence of residual solvents that remain after extraction procedure. Expression and solvent extraction are the two commonly employed methods for isolation of oils from oil bearing seeds. Latter method is more extensively used due its higher yield and cost benefit. Solvent extraction method requires solvent for the extraction procedure. The complete removal of residual levels of these solvents is impracticable and traces always remain in the final products. The presence of these residual solvents even in small amounts has a negative influence not only on the quality of food products but also on human health. ICH and various pharmacopoeias have published guidelines on the acceptable level of residual solvents. These guidelines prescribe their maximum permissible limit in the product. Currently food companies have adopted methodologies that will reduce the levels of solvent residues. Since, most of the solvents employed for extraction of edible oils are known for varying degree of toxicity, therefore, it will be highly desirable to reserve fixed oils obtained either by expression or by supercritical fluid technology for edible use and solvent extracted fixed oils for exclusive non-edible use. Such an approach will not only be industrially viable but also ensure safety of public health.
Keyword: vegetable oils; edible oils; solvent extraction; residual solvents; expression; toxicity.
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