The present invention discloses a low urea-producing and flavor-producing Wickerhamomyces anomalus strain and a use thereof in food production, falling within the fields of wine brewing and food safety. The Wickerhamomyces anomalus of the present invention is obtained by isolating from a liquor fermentation environment (Daqu), is named Wickerhamomyces anomalus CGMCC NO. 12416, and was deposited at China General Microbiological Culture Collection Center on May 6, 2016, with a deposit number of CGMCC NO. 12416. The strain of the present invention has the characteristics of low urea production, flavor production, and tolerance to ethanol and acids, is an excellent strain having a fermentation function, and can be used in brewed wine, distilled liquor and other food fields to ensure food safety.

The present invention discloses a low urea-producing and flavor-producing Wickerhamomyces anomalus strain and a use thereof in food production, falling within the fields of wine brewing and food safety. The Wickerhamomyces anomalus of the present invention is obtained by isolating from a liquor fermentation environment (Daqu), is named Wickerhamomyces anomalus CGMCC NO. 12416, and was deposited at China General Microbiological Culture Collection Center on May 6, 2016, with a deposit number of CGMCC NO. 12416. The strain of the present invention has the characteristics of low urea production, flavor production, and tolerance to ethanol and acids, is an excellent strain having a fermentation function, and can be used in brewed wine, distilled liquor and other food fields to ensure food safety.

The present invention relates among other things to a method for making enzymatically produced purple corn nectar having a composition comprising saccharides and. anthocyanins. The anthocyanin composition is present in concentrations of at least 40 mg/100 g of nectar and is a direct result of the process of making the corn nectar from the purple corn kernels and does not constitute an exogenous addition to the purple corn nectar.

The invention relates to barley plants having a high α-amylase activity. The barley plants of the invention may for example carry a mutation in one or more α-amylase promoters, in the HRT gene, in the HBL12 gene and/or in the WRKY38 gene. The invention further provides plant products prepared from said barley plants.

The invention relates to barley plants having a high α-amylase activity. The barley plants of the invention may for example carry a mutation in one or more α-amylase promoters, in the HRT gene, in the HBL12 gene and/or in the WRKY38 gene. The invention further provides plant products prepared from said barley plants.

A problem of the present invention is to provide a simple method for producing food or drink having green flavor. A solution for the problem is a method for producing food or drink having green flavor, comprising a step A of photocatalytically treating a lipid containing a fatty acid having 10 to 18 carbon atoms and a step B of heating the photocatalytically-treated product obtained in step A.

Provided is a beer-taste beverage comprising 1000 ppb by mass or less of 4-vinylguaiacol, having an ethyl n-butyrate content of 140 ppb by mass or more, and comprising at least one lactone selected from γ-decanolactone and γ-undecalactone, wherein a ratio of the content (unit:ppb by mass) of ethyl n-butyrate to the total content (unit:ppb by mass) of the lactone [ethyl n-butyrate/lactone] is 1100 or less.

Provided is a beer-taste beverage comprising 1000 ppb by mass or less of 4-vinylguaiacol, and having an ethyl n-butyrate content of 140 ppb by mass or more, a ratio of the content (unit: ppb by mass) of ethyl n-butyrate to the content (unit: ppb by mass) of γ-nonalactone [ethyl n-butyrate/γ-nonalactone] is 23 or less.

Provided is a beer-taste beverage comprising 1000 ppb by mass or less of 4-vinylguaiacol, and having an ethyl n-butyrate content of 140 ppb by mass or more, a ratio of the content (unit: ppb by mass) of ethyl n-butyrate to the content (unit: ppb by mass) of γ-nonalactone [ethyl n-butyrate/γ-nonalactone] is 23 or less.

A Saccharomyces cerevisiae strain with high yield of ethyl butyrate and a construction method and an application thereof are provided. The strain is obtained by over-expressing in the starting strain acetyl coenzyme A acyl transferase gene Erg10, 3-hydroxybutyryl coenzyme A dehydrogenase gene Hbd, 3-hydroxybutyryl coenzyme A dehydratase gene Crt, trans-2-enoyl coenzyme A reductase gene Ter, and alcohol acyl transferase gene AAT. Compared to the starting bacteria not producing ethyl butyrate, the yield of ethyl butyrate of the constructed strain reaches 77.33±3.79 mg/L, the yield of the ethyl butyrate of the strain with double copy expression of gene Ter and gene AAT reaches 99.65±7.32 mg/L, increased by 28.9% compared with the EST strain, and 40.93±3.18 mg/L of ethyl crotonate is unexpectedly produced.