浓香型大曲酯化力的测定方法探讨

从酯化反应的温度、底物浓度、用曲量、酯化时间几个方面着手,本着便于操作、能真实反映大曲酯化能力的相对大小、与生产实际相联系的原则,通过试验,选择合适的测定大曲酯化力的方法。     

蜂蜜酒发酵工艺条件的优化研究

以蜂蜜、麦曲、酵母为原材料,以酒精度为指标,通过单因素实验分别考察了发酵温度、发酵时间、磷酸氢二铵添加量和发酵液糖度对酵母发酵蜂蜜过程中酒精度的影响。根据响应面优化结果进行验证实验,最终的优化条件如下：当麦曲添加量4.0%,酵母添加量0.2%,磷酸氢二铵添加量600 mg/L,发酵液糖度为32.0%,pH值为4.5,发酵温度为32.0 ℃,培养时间为6 d时,能得到酒精度的最高值13.6%。     

我国生麦制曲特征和操作技艺

为了充分认识我国传统生麦曲的制作工艺,介绍了传统生麦曲中微生物种群和来源、生麦曲的功能、作用和生麦制曲的特征,同时还详细介绍了生麦曲制作的工艺及生麦曲的质量要求.     

Ripening temperature affects the content and distribution of isoflavones in sufu,a fermented soybean curd

Sufu, a fermented soybean curd, was prepared by ripening the salted tofu cubes in the Aspergillus oryzae‐fermented rice–soybean koji mash at 25, 35 or 45 °C for a period of 16 days. It showed that the 16‐day ripened sufu contains less total isoflavone content (629.29–739.68 μg g^?1 dried matter) than the salted tofu before ripening (942.59 μg g^?1 dried matter). Regardless of ripening temperature, ripening causes a major reduction in the content of β‐glucoside and malonylglucoside isoflavones along with a significant increase of aglycone isoflavone content. These changes were enhanced as the ripening period extended. Among the various treatments examined, sufu ripened at 45 °C showed the greatest increase in aglycone content coupled with the greatest decrease in malonylglucosides. The distribution of malonylglucosides decreased from an initial 40.32% in the tofu cube to 9.78% after 16 days of ripening at 45 °C. Meanwhile, the distribution of aglycone increased from 13.17% to 39.88%.     

Effects of rice koji inoculated with Aspergillus luchuensis on the biochemical and sensory properties of a sailfin sandfish (Arctoscopus japonicus) fish sauce

The effects of rice koji inoculated with Aspergillus luchuensis on the biochemical and sensory properties of fish sauce produced from sailfin sandfish (Arctoscopus japonicus) with different salt concentrations (10% and 20%) were investigated over 10 months. Fish sauces prepared from sailfin sandfish with rice koji and a low salt concentration had higher total nitrogen, amino nitrogen and total free amino acid than did those without rice koji or with a high salt concentration. Sensory evaluation of fish sauces prepared with rice koji and a low salt concentration found better taste, flavour and overall acceptance than those prepared without rice koji during fermentation (P < 0.05). The use of rice koji increased the total nitrogen, amino nitrogen and free amino acid and also enhanced the sensory qualities during fermentation. These results suggest that the use of rice koji can result in a low‐salt fish sauce with better flavour.     

用现代生物技术改革生酒传统工艺的初探

该文主要探索了寿生酒传统工艺的改革，试验表明：当红曲用量减少40％，用真菌淀粉酶，黄酒活性干酵母取代，所酿制的寿生酒不仅品质更高，而且出酒率提高了5％左右。     

酒糟大曲的生产技术及工艺探索

酒糟大曲以小麦为主要原料，以新鲜的白酒生产的副产物-酒糟为辅料，同时添加一定比例的曲粉副产物-飞箩曲；小麦经粉碎，粗细比为6：4；新鲜酒糟添加比例占小麦的15％，飞箩曲添加比例为占小麦和酒糟总和的4％；曲坯水分含量控制在38％-40％之间，防止小麦霉变，酒糟防止生绿霉、黄霉，拌料透彻均匀，先拌料后加水；曲房要定期、不定期清洁，保持卫生；曲坯入房曲的挂衣期、晾霉以及最后出房，整个过程中密切关注温度变化，防止升温过猛，严格技术和工艺参数要求，按其生产所得的大曲周期短，糖化力高，成本低的特点。     

高效液相色谱法测定红曲中洛伐他汀的含量

目的:建立高效液相色谱法测定红曲中洛伐他汀含量的方法。方法:采用色谱柱AgilentZORBAXSB-C18(4.6×150mm,5μm),流动相为甲醇-0.02%磷酸(75:25),流速为1.0mL/min,检测波长为237nm。结果:洛伐他汀在1.1936-3.5808μg范围内线性关系良好(γ=1),平均回收率为100.78%,RSD为1.40%。结论:本方法灵敏、准确,可作为红曲的质量控制方法。     

酱油用圆盘制曲机自动控制系统的应用

针对圆盘制曲机专门开发的CHR-Process600智能控制系统，可实现从原料至成品全过程的标准化作业，达到真正的在封闭式状态下，做到自动化生产高质量的酱油曲，减少人为因素的影响。该文介绍了CHR-Process600圆盘制曲机自动控制系统的结构、功能以及在实际生产中应用的效果。     

广东肇庆传统酒曲优势霉菌的分离及鉴定

为对广东肇庆传统小曲的优势霉菌进行鉴定,以该小曲的稀释液涂布于麦芽汁平板上,分离、纯化得到菌株F6,然后观察F6的培养特征和菌体形态特征,做普氏(Pfeffer)培养液等鉴定试验,并与目前应用广泛的菌株Q303的生长特征进行对比。结果表明:F6具有假根、匍匐茎、孢囊孢子、菌丝无隔膜等根霉的典型形态特征,且在普氏培养液中28℃和37℃下能生长,在45℃下不能生长。与Q303相比,F6的孢子囊梗和菌丝更短,在麦芽汁培养基表面上生长会起皱褶,气生菌丝稀疏,有极少的孢子囊。广东肇庆传统小曲的优势霉菌F6为米根霉种(Rhizopus oryzae)。F6糖化酶活力强,所酿之酒具有独特风味。