摘要
研究旨在探讨发酵剂及玉米浆对苹果渣发酵饲料氨基酸含量及种类的影响。以白地霉＋黑曲霉、酵母＋黑曲霉为复合发酵剂、苹果渣为主料进行固态发酵；采用氨基酸分析仪测定发酵产物中的氨基酸总量及水溶性氨基酸含量。结果表明：①2种复合发酵剂均能较大幅度提高苹果渣发酵产物氨基酸总量及水溶性氨基酸含量.以苹果渣为主料及以苹果渣＋玉米浆为原料，以酵母菌＋黑曲霉为发酵剂，发酵产物氨基酸总量较对照组分别增加83．1％及83．2％；以白地霉＋黑曲霉为复合发酵剂时，发酵产物的水溶性氨基酸总量较原料对照组分别增加181．5％、305．0％；接种酵母菌＋黑曲霉复合发酵剂时，发酵产物中的水溶性氨基酸总量较原料对照组分别增加215．1％、272．0％。②接种白地霉＋黑曲霉复合发酵剂时，添加玉米浆可使发酵产物必需氨基酸含量增加11．8％。32．4％。苹果渣接种复合发酵剂进行固态发酵对发酵产物氨基酸总量及水溶性氨基酸含量均有较大幅度的促进作用。
This experiment aimed to determine the effect of fermentation agents and corn steep liquor on amino acids contents and varieties in apple pomace fermented feed. Using Geotricbum candidum＋As- pergillus niger and Yeast ＋ Aspergillus niger as complex microbial agents, the main material of apple pomace was used in solid-state fermentation; The contents of amino acids and water-soluble amino ac- ids in fermentation products were measured by amino acid analyzer. The results showed that, The re- suits showed that：①The two mixed-strains fermentation agents could significantly increased the con- tents of the total amino acids and water-soluble amino acids to the fermentation products of apple pom- ace. When apple pomace as based materials and apple pomace＋corn steep liquor as the raw materials in Yeast＋Aspergillus niger, the total contents amino acids of fermentation products were enhanced by 83.1%, 83.2%, respectively, compared with the blank samples; In Geotrichum candidum＋Aspergillus niger mixed-strains fermentation agent, the contents water-soluble amino acids of fermentation prod- ucts were enhanced 181.5%, 305.0%, compared with the control; When inoculated Yeast＋Aspergillus niger complex agent, the total contents water-soluble amino acids of fermentation products were in- creased by 215.1%, 272.0%, compared with the blank samples.②When inoculated Geotrichum candi- dum＋Aspergillus niger mixed-strains fermentation agent, the corn steep liquor can make the contents essential amino acids increase by 11.8%-32.4%. These results indicated that the fermentation prod- ucts of apple pomace have significantly promoted the amino acids and water-soluble amino acids bythe mixed-strains solid-state fermentation.and the corn steep liquor
出处
《饲料工业》
北大核心
2014年第6期42-46,共5页
Feed Industry
基金
国家科技支撑计划项目[2012BAD14B11]资助
关键词
苹果渣
氨基酸
发酵饲料
apple pomace
amino acid
fermentedfeed
