Các bạn ơi! các bạn có thể giúp mình dowload tài liệu về hợp chất mannitol không? mình cần làm một chuyên đề tổng hợp về nó! cám ơn nhiều!!!1:tuongquan
Bạn tham khảo link này xem sao he: Mannitol - Wikipedia Tui search trên google thấy quá trời luôn nè: mannitol - Tìm trên Google Bạn vào google search có lẽ sẽ tìm được cái bạn muốn đó Chúc vui! Thân!
Đã PM bài này cho bạn. Enjoy !
Mannitol production by lactic acid bacteria: a review
International Dairy Journal, Volume 12, Issues 2-3, 2002, Pages 151-161
Abstract
Mannitol is a polyol or sugar alcohol that is produced by several organisms. Mannitol is assumed to have several beneficial effects, as an antioxidant (protection against oxidative damage by oxygen radicals) and as a non-metabolizable sweetener. Mannitol can therefore be applied to foods leading to health-promoting effects (functional foods). Mannitol-producing lactic acid bacteria may directly be applied in the manufacture of foods and this may lead to fermented food products with an extra nutritional value.
In this article, the production of mannitol by lactic acid bacteria is reviewed. Several heterofermentative lactic acid bacteria produce mannitol in large amounts, using fructose as an electron acceptor, whereas homofermentative lactic acid bacteria only produce small amounts of mannitol, often only when the bacteria are defective in lactate dehydrogenase activity. The physiology, pathways and genetics of mannitol production in both homofermentative and heterofermentative lactic acid bacteria are presented and discussed.