Development of a pilot-scale process to sequester aflatoxin and release bioactive peptides from highly contaminated peanut meal

作者：White Brittany L; Oakes Aaron J; Shi Xiaolei; Price Kristin M; Lamb Marshall C; Sobolev Victor S; Sanders Timothy H; Davis Jack P^*

来源：LEBENSMITTEL-WISSENSCHAFT UND-TECHNOLOGIE-FOOD SCIENCE AND TECHNOLOGY, 2013, 51(2): 492-499.

DOI：10.1016/j.lwt.2012.10.022

• ACE
• Aflatoxin
• Bioactive peptides
• Peanut meal
• Value-added

Peanut meal (PM) is the high protein by-product remaining after commercial extraction of peanut oil. PM applications are limited because of typical high concentrations of aflatoxin. For the first time, pilot-scale extraction of protein and sequestration of aflatoxin from PM were evaluated. Aqueous PM dispersions were mixed with two commercial bentonite clays and Alcalase in a jacketed mixer, hydrolysed for 1 h, heated to inactivate protease, and solids and liquids were separated using a decanter. Liquid hydrolysates derived from this process had %26gt;90% reduction in aflatoxin when clay was present. ACE-inhibitory activities of these hydrolysates suggest a potential benefit for blood pressure regulation. The insoluble fractions from the dispersions were dried and used in a separate turkey poult feeding study. These results indicate that scale-up of this novel process is feasible and offers a means for adding value to this underutilized protein source. Published by Elsevier Ltd.

• 出版日期2013-5