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益生菌发酵乳制品的生理功能 被引量:5

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摘要 益生菌是指当人体服用一定量时能够对人体产生有益影响的微生物,人们熟知的大多数益生菌是能够产生乳酸的用于发酵乳制品的乳酸菌。乳酸菌发酵制品能够对人体产生有益的影响,包括:(1)提高肠道微生物菌群活力;(2)增强机体免疫力;(3)降低乳糖不耐症;(4)预防癌症的发生。益生菌发挥功能的机理很多尚不明了,已知的机制包括降低肠道微环境的pH值;通过产生抗菌物质抑制致病菌生长;通过和致病菌竞争粘附位点和营养抑制致病菌在上皮细胞的生长和定植;刺激免疫细胞活性和产生乳酸。最近的研究结果表明益生菌已经成为人体健康饮食的重要组成部分,是阻止致病菌侵入快捷、有效、安全、重要的途径。
出处 《中国乳业》 2013年第5期64-67,共4页 China Dairy
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