PROBLEM TO BE SOLVED: To provide a yeast which can hold a sulfur-containing compound such as glutathione in the cell body in a large amount, and to provide a sulfur-containing compound-containing food or drink using the yeast.SOLUTION: Provided are the yeast mutant strain in which at least one part of DOA1 gene and at least one part of MET30 gene are deleted or mutated by a mutation treatment the yeast mutant strain, wherein the yeast mutant strain is Saccharomyces cerevisiae ABYC1569 (Accession number: FERM P-20386) the dry yeast cells of the yeast mutant strain a method for producing a highly sulfur-containing compound-containing yeast, characterized by culturing the yeast mutant strain to accumulate the sulfur-containing compound in the yeast strain cells in high concentration the culture product of the yeast mutant strain a yeast extract containing the culture product a sulfur-containing compound-containing fraction obtained by fractionating the culture product and a sulfur-containing compound-containing food or drink containing the culture product or the fraction.COPYRIGHT: (C)2010,JPO&INPIT【課題】菌体中にグルタチオン等の含硫化合物を多量に保持しうる酵母、および該酵母を利用した含硫化合物含有飲食品を提供すること。【解決手段】突然変異処理により、DOA1遺伝子の少なくとも一部およびMET30遺伝子の少なくとも一部を、欠損または変異させたことを特徴とする酵母変異株、前記酵母変異株が、サッカロマイセス・セレビシエ ABYC1569(受託番号FERM P-20386)である酵母変異株、これらの酵母変異株の乾燥酵母菌体、酵母変異株を培養して、当該酵母株菌体内に含硫化合物を高濃度に蓄積させることを特徴とする、含硫化合物高含有酵母の製造方法、前記酵母変異株の培養物、該培養物を含有する酵母エキス、前記培養物を分画して得られる含硫化合物を含む分画物、前記培養物又は前記分画物を含有することを特徴とする含硫化合物含有飲食品。【選択図】図1
