C - Chemistry – Metallurgy – 12 – P
Patent
C - Chemistry, Metallurgy
12
P
C12P 7/64 (2006.01) C11B 13/00 (2006.01) C11B 13/02 (2006.01) C12N 1/20 (2006.01) C12N 1/21 (2006.01) C12P 7/40 (2006.01)
Patent
CA 2401069
Methods for acidification of soapstock using acids produced by fermentation with acidogenic bacteria and recovery of acidulated fatty acids are disclosed. Soapstock is advantageously acidified by fermentation of endogenous soapstock nutrients and added nutrients under controlled conditions using acidogenic bacteria. The nutrients may include carbohydrate, nitrogen, phosphorous, sulfur from defined or undefined sources. The acidification reaction avoids the use of strong acids for the treatment of soapstock, minimizes wastewater contamination with salts and produces potentially valuable by-products including lactic acid, acetic acid, glyceric acid and nutrient rich microorganisms.
Procédés d'acidification de soapstock au moyen d'acides produits par la fermentation avec des bactéries acidogènes et la récupération d'acides gras acidulés. Le soapstock est avantageusement acidifié par la fermentation d'éléments nutritifs endogènes du soapstock et d'éléments nutritifs ajoutés dans des conditions contrôlées, au moyen de bactéries acidogènes. Les éléments nutritifs peuvent comprendre des glucides, l'azote, le phosphore et le soufre provenant de sources définies ou non définies. La réaction d'acidification empêche l'utilisation d'acides forts pour le traitement du soapstock, réduit au minimum la contamination des eaux usées et produit des sous-produits de valeur comprenant l'acide lactique, l'acide acétique, l'acide glycérique et des micro-organismes riches en éléments nutritifs.
Feed Energy Company
Moffat & Co.
LandOfFree
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