Journal
LWT-FOOD SCIENCE AND TECHNOLOGY
Volume 68, Issue -, Pages 280-287Publisher
ELSEVIER
DOI: 10.1016/j.lwt.2015.11.064
Keywords
Tomato processing by products (TPB); Solid state fermentation (SSF); Fusarium solani pisi; Lycopene; Enzymatic extraction
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The present study aims to evaluate the direct use of crude enzymes extract produced by solid state fermentation (SSF) of Fusarium solani pisi to improve lycopene extraction from tomato processing by products (TPB) and thus avoiding the downstream steps. Optimized production of the crude enzymes extract (23.90 mu g/ml) was obtained after 7 days of incubation of TPB moistened with distilled water (1/3, w/v) at 30 degrees C. Afterwards, TPB was pretreated by the crude enzymes extract with pectinolytic, cellulolytic and cutinolytic activities and then subjected to ethanol extraction. The factors investigated included pH, temperature, particle size and solid-to-crude enzymes solution ratio and results provided the following optimal extraction conditions: pH = 8, T = 50 degrees C, solid-to-enzyme ratio = 1/30 (w/v) and TPB particle size between 0.8 and 1.25 mm. Lycopene recovery was moderately higher when extracted using F solani crude enzymes extract compared to either pectinases and cellulases preparations. TPB enzymatic extract exhibited powerful antioxidant activity even better than the ethanol TPB extract. The obtained results strongly support the idea of using enzymes from SSF of F. solani as an effective means for recovering powerful antioxidant from tomato by products. (C) 2015 Published by Elsevier Ltd.
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