Abstract: Provided herein are genetically modified yeast cells that recombinantly express a glycosidase enzyme. Provided herein are genetically modified yeast cells that recombinantly express a glycosidase enzyme and/or an O-methyltransferase enzyme. Also provided are methods of producing fermented beverages and compositions comprising ethanol using the genetically modified yeast cells described herein.

Abstract: The present invention relates to the DNA sequence for eukaryotic genes encoding ? cyclase isolated from romaine lettuce as well as vectors containing the same and hosts transformed with said vectors. The present invention provides methods for controlling the ratio of various carotenoids in a host and to the production of novel carotenoid pigments. The present invention also provides a method for treating disease by administering carotenoids obtained from transformed hosts, or by administering a composition containing the transformed hosts.

Abstract: The sequence of a nucleic acid isolated from a cDNA library of the flowering plant Adonis aestivalis is disclosed (SEQ ID NO: 1). This DNA sequence, referred to as AdKC28, encodes for a protein that acts in conjunction with proteins encoded by either one of two other closely-related Adonis aestivalis cDNAs, AdKeto1 and AdKeto2, to convert ?-carotene (?,?-carotene) into astaxanthin (3,3?-dihydroxy-4,4?-diketo-?,?-carotene). Together, these Adonis aestivalis cDNAs, when operably linked to promoters appropriate to the transgenic host, enable the production of astaxanthin and other carotenoids with 3-hydroxy-4-keto-?-rings in a variety of host cells and organisms.