Characterization and application of Lachancea thermotolerans isolates for sake brewing.

Non-conventional yeasts are increasingly being used in the production of fermented beverages owing to their ability to create unique and high-quality products. The yeast Lachancea thermotolerans is of great industrial significance, particularly in the production of l(+)-lactic acid, which is beneficial for acidifying wine, beer, and potentially sake. To explore its potential in sake brewing, three L.

Influence of mutation in the regulatory domain of α-isopropylmalate synthase from Saccharomyces cerevisiae on its activity and feedback inhibition.

Isoamyl alcohol (i-AmOH) is produced from α-ketoisocaproate in the l-leucine biosynthetic pathway in yeast and controlled by the negative feedback regulation of α-isopropylmalate synthase (IPMS), which senses the accumulation of l-leucine. It is known that i-AmOH production increases when mutations in the regulatory domain reduce the susceptibility to feedback inhibition. However, the impact of mutations in this domain on the IPMS activity has not been examined.

Identification of Two Phenanthrene Derivatives from Australasian Allied Species in Genus Dendrobium.

Genus Dendrobium (Orchidaceae) contains numerous species. Phylogenetic analyses based on morphological characteristics and DNA sequences indicated that this genus is divided into two major groups: Asian and Australasian clades. On the other hand, little is known about the phytochemical differences and similarities among the species in each clade.