caa a22 4500 465823254 CHVBK 20180323112141.0 cr unu---uuuuu 170327e19901101xx s 000 0 eng 10.1007/BF00166772 doi (NATIONALLICENCE)springer-10.1007/BF00166772 Mutants of bakers' yeasts producing a large amount of isobutyl alcohol or isoamyl alcohol, flavour components of bread [Elektronische Daten] [Makoto Watanabe, Kazuro Fukuda, Kozo Asano, Shigenori Ohta] Summary: Mutants resistant to 4-aza-dl-leucine were derived from strains of the bakers' yeast Saccharomyces cerevisiae and selected with respect to overproduction of isobutyl alcohol (i-BuOH) or isoamyl alcohol (i-AmOH). Many mutants that produced i-BuOH or i-AmOH more than the parent strains were obtained. In the evaluation of these mutants, bread containing more i-BuOH was evaluated as giving a favorable characteristic flavour, but bread with more i-AmOH was unfavorable. These mutants were able to ferment dough at similar rates to commercial bakers' yeasts. The mutants overproducing i-BuOH or i-AmOH were released from inhibition of the key enzymes, acetohydroxy acid synthase and α-isopropylmalate synthase, respectively, in the pathway of branched-chain amino acids synthesis. Springer-Verlag, 1990 Watanabe Makoto Foods and Liquors Research Laboratories, Kyowa Hakko Kogyo Co., Ltd., 4041 Ami-machi, Inashiki-gun, 300-03, Ibaraki, Japan aut Fukuda Kazuro Foods and Liquors Research Laboratories, Kyowa Hakko Kogyo Co., Ltd., 4041 Ami-machi, Inashiki-gun, 300-03, Ibaraki, Japan aut Asano Kozo Foods and Liquors Research Laboratories, Kyowa Hakko Kogyo Co., Ltd., 4041 Ami-machi, Inashiki-gun, 300-03, Ibaraki, Japan aut Ohta Shigenori Foods and Liquors Research Laboratories, Kyowa Hakko Kogyo Co., Ltd., 4041 Ami-machi, Inashiki-gun, 300-03, Ibaraki, Japan aut Applied Microbiology and Biotechnology Springer-Verlag 34/2(1990-11-01), 154-159 0175-7598 34:2<154 1990 34 253 https://doi.org/10.1007/BF00166772 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00166772 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Watanabe Makoto Foods and Liquors Research Laboratories, Kyowa Hakko Kogyo Co., Ltd., 4041 Ami-machi, Inashiki-gun, 300-03, Ibaraki, Japan aut NATIONALLICENCE 700 1- Fukuda Kazuro Foods and Liquors Research Laboratories, Kyowa Hakko Kogyo Co., Ltd., 4041 Ami-machi, Inashiki-gun, 300-03, Ibaraki, Japan aut NATIONALLICENCE 700 1- Asano Kozo Foods and Liquors Research Laboratories, Kyowa Hakko Kogyo Co., Ltd., 4041 Ami-machi, Inashiki-gun, 300-03, Ibaraki, Japan aut NATIONALLICENCE 700 1- Ohta Shigenori Foods and Liquors Research Laboratories, Kyowa Hakko Kogyo Co., Ltd., 4041 Ami-machi, Inashiki-gun, 300-03, Ibaraki, Japan aut NATIONALLICENCE 773 0- Applied Microbiology and Biotechnology Springer-Verlag 34/2(1990-11-01), 154-159 0175-7598 34:2<154 1990 34 253 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer