AN APPROACH FOR UTILIZATION OF AGRO·INDUSTRIAL WAS.TES OF SUGAR AND SWEETENERS CROPS FOR NATURAL ANTIOXIDANT PRODUCTION | ||||
| Journal of Food and Dairy Sciences | ||||
| Article 5, Volume 29, Issue 5, May 2004, Page 2659-2671 PDF (1.15 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jfds.2004.240333 | ||||
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| Author | ||||
| Mona I. Massoud | ||||
| Sugar Crops Res. Inst., Agric. Research Center, EI-Sabahia, Alex. | ||||
| Abstract | ||||
| Proximate composition of agro-industrial wastes of sugar cane farm, sugar cane 'bagasse, sugar beet farm, sugar beet pulp, stevia, Jerusalem artichoke, chicory farm and chicory pulp were determined. Polyphenolic phytochemical content of these waste materials were extracted with hoi aqueous methanol. Total phenoliCS content in the methanolic extract were determined, Phenolic compounds in each extract were identified with HPLC. Antioxidant activity of each methanolic extract was evaluated. The obtained results revealed that total phenolic contents of various waste materials were in range of 1.68 to 16.13 g/100 g of dry matter expressed as gallic acid equivalents and the highest amount was obtained in stevla wastes followed with . sugar cane farm.. Identification analysis with HPLC revealed that there are at least seven 'of different phenolic compounds with different concentration in each methanolic extract except Jerusalem artichoke and chicory pulp which contained only one identified compound. Moreover the results of antioxJdative activities of the obtained melhanolic extracts showed that all of rnethanolic extracts had inhibited hydroperoxide formation in sunflower oil during storage at 60·C. The sugar cane and stevia extract had the highest inhibition effect on the hydroperoxide formation. Application such. material as antioxidant may provide health promoting advantages to consumer as a natural antioxidant and maximize the utilization of such crops. | ||||
| Keywords | ||||
| Phenolic compounds; Sugar crop wastes; Antioxidant | ||||
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