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Solid state fermentation of pomegranate seed for lovastatin production: a bioprocessing approach

Advances in Bioscience and Biotechnology 2012年第5期3卷 643-647页

作者： Azza Naik smita lele Food Engineering and Technology Department Institute of Chemical Technology Mumbai India

This study reports lovastatin production by solid state fermentation using pomegranate seeds as a substrate. Six different fungal strains and several agro-industrial wastes were selected and screened. Various physico-chemical parameters were optimized to improve lovastatin. Moreover, chemical mutation was systematically employed to enhance lovastatin yield on selected strains. Productivity of 3 ± 0.06 mg lovastatin/gm dfm was obtained prior to optimization. One factor a time followed by Response Surface Methodology (RSM) gave 4.2 ± 0.10 mg lovastatin/gm dfm yield in an optimized setup with pomegranate seed powder (5 gms), KH2PO4 (0.1% w/v), glucose (5% w/v), moisture (60% w/w), pH 5 in a 15 days fermentation cycle. The production was further increased to 6.5 ± 0.08 mg lovastatin/gm dfm through chemical mutation of the strain. This process is simple and reproducible for the production of lovastatin using pomegranate seed as an agro-industrial waste.

关键词： Lovastatin Pomegranate Seeds Solid Substrate Fermentation Aspergillus Terreus

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Effect of Gamma Irradiation on Total Phenolic Content and <i>in Vitro</i>Antioxidant Activity of Pomegranate (<i>Punica granatum</i>L.) Peels

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Food and Nutrition Sciences 2011年第5期2卷 428-433页

作者： Amol B. Mali Kalpana Khedkar smita S. lele Food Engineering and Technology Department Institute of Chemical Technology (ICT) Matunga Mumbai

Pomegranate peels were studied for the effect of gamma irradiation on microbial decontamination along with its effect on total phenolic content and in vitro antioxidant activity. Gamma irradiation was applied at various dose levels (5.0, 10.0, 15.0 and 25.0 kGy) on pomegranate peel powder. Both the values of total phenolic content and in vitro antioxi- dant activity were positively correlated and showed a significant increase (p < 0.05) for 10.0 kGy irradiated dose level immediately after irradiation and 60 days of post irradiation storage. At 5.0 kGy and above dose level, gamma irradia- tion has reduced microbial count of pomegranate peel powder to nil. Post irradiation storage studies also showed that, the irradiated peel powder was microbiologically safe even after 90 days of storage period.

关键词： Pomegranate Peels Food Irradiation Total Phenolic Content In Vitro Antioxidant Activity Microbial Load

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