食品科学 ›› 2009, Vol. 30 ›› Issue (5): 50-54.doi: 10.7506/spkx1002-6630-200905010

• 基础研究 • 上一篇    下一篇

发酵里脊火腿微生物特性和理化特性研究

于立梅1,刘学军2,白卫东1,陈海光1,曾晓房1   

  1. 1. 仲恺农业工程学院轻工与食品学院 2.吉林农业大学食品科学与工程学院
  • 收稿日期:2008-05-09 修回日期:2008-08-07 出版日期:2009-03-01 发布日期:2010-12-29
  • 通讯作者: 于立梅 E-mail:biyingwang2003@163.com
  • 基金资助:

    广东省关键领域重点突破项目(2007ZE-E6011)

Study on Microbial and Physicochemical Characteristics of Fermented Loin Ham

YU Li-mei1,LIU Xue-jun2,BAI Wei-dong1,CHEN Hai-guang1,ZENG Xiao-fang1   

  1. (1.College of Light Industry and Food Science, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China;
    2.College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, China)
  • Received:2008-05-09 Revised:2008-08-07 Online:2009-03-01 Published:2010-12-29
  • Contact: YU Li-mei1, E-mail:biyingwang2003@163.com

摘要:

本实验对里脊发酵火腿发酵理化特性变化及储藏过程微生物的消长规律进行了研究。结果表明,乳酸菌在发酵火腿加工过程中始终处于优势菌状态并保持着较高的水平。较高水平的乳酸菌有效地抑制了杂菌的生长,改善了产品品质,提高了产品的保藏性。谷氨酸、苏氨酸、缬氨酸、异亮氨酸、丝氨酸及丙氨酸含量显著增加。实验组脂肪酸中C18:1 的含量下降,而C18:2 和C18:3 -α含量增加。发酵所营造的酸性环境促进了亚硝酸盐的分解, 大大降低了亚硝酸盐的残留量,TVB-N、TBA 在发酵和贮藏期间实验组均小于对照组。

关键词: 里脊, 发酵火腿, 理化特性

Abstract:

The variation of physicochemical characteristics and the growth and decline regularity of microbe of fermented loin ham were investigated in storage process. The results indicated that lactic acid bacteria are in advantage state and always keep high level in the processing of fermented loin ham. The lactic acid bacteria at relatively high level suppress the growth of undesired bacteria effectively, improve the product quality, and prolong the storage period of the products. During the fermentation process, although the total contents of free amio acids and fat acids do not vary obviously, the contents of Thr, Ala, Glu, Ile, Leu and Val as well as the contents of C18:2 and C18:3-α significantly increase, while that of C18:1 decreases. Moreover, the acid fermentation environment promotes the degradation of nitrite and reduces the residue of nitrite in products. Compared with the control group, the contents of TVB-N and TBA are lower in both of fermentation and storage stages.

Key words: loin, fermented ham, physicochemical characteristics

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