The application discloses a
coupling method for producing fructo-
oligosaccharide and feed
yeast by using water extract of
moringa oleifera
branch, and belongs to the field of high-value utilization of agricultural and
forestry by-products and biological
processing technology. The method comprises the following steps:
water extraction is performed on the
moringa oleifera
branch to obtain a water extract of the
moringa oleifera
branch containing
fermentable sugar; then, a fructosyltransferase is used for enzymatic reaction to obtain an
enzyme cut solution containing fructo-
oligosaccharide; then, the
enzyme cut solution is inoculated with
saccharomyces cerevisiae for
fermentation; after the
fermentation is completed, the
fermentation liquid is separated into
solid and liquid, the supernatant is a fructo-
oligosaccharide solution, and the part of the
bacteria is centrifuged, washed and dried to obtain feed
yeast. The method realizes efficient utilization of natural
sugar components in the moringa oleifera branch and the synergistic preparation of fructo-oligosaccharide and feed
yeast, and has the advantages of wide
raw material sources, mild process, high added value and high
resource utilization rate.