Abstract: The present invention provides a solid beverage containing barley leaves, comprising the following components: 15-60 wt. % of a barley leaf micro-powder, 10-50 wt. % of xylitol granules, 5-20 wt. % of a matcha powder, 1-10 wt. % of inulin, 0.5-4.0 wt. % of a konjac powder, 0.2-3.0 wt. % of silicon dioxide, and 0.1-3.0 wt. % of sucralose. The present invention also relates to a method for preparing the solid beverage, comprising the following steps: mixing a barley leaf micro-powder, inulin, a konjac powder and matcha powder, and then performing wet granulation on same to obtain granulated powders; passing the granulated powders through a 20-mesh sieve after drying same to obtain whole granules; and uniformly mixing the whole granules with xylitol granules, sucralose and silicon dioxide, and then sub-packaging same, so as to obtain the solid beverage. The solid beverage is easy and fast to dissolve, does not separate, and tastes refined and smooth.

Abstract: The present invention provides a method for producing and purifying ?-carotene by Blakeslea trispora fermentation and use thereof. The method comprises the following steps: a) separately inoculating the Blakeslea trispora strains onto a PDA culture medium so as to obtain a spore suspension; b) propagating spores in a seeding tank so as to obtain seeds for fermentation; c) inoculating the seeds for fermentation onto a fermenter and fermenting said seeds; d) adjusting the fermentation liquid to be basic by using an organic or inorganic base, and filtering so as to obtain wet mycelia; e) treating the wet mycelia with a hydrophobic non-polar organic solvent; f) mixing the wet mycelia with an organic solvent of ester and obtaining a concentrated solution by extracting; g) adding a saturated monohydric alcohol into the concentrated solution, and filtering and crystallizing so as to obtain pure ss-carotene. The content of the ss-carotene in the present invention exceeds 96%, and the yield is above 85%.

Abstract: The present invention provides a method for producing and purifying ?-carotene by Blakeslea trispora fermentation and use thereof. The method comprises the following steps: a) separately inoculating the Blakeslea trispora strains onto a PDA culture medium so as to obtain a spore suspension; b) propagating spores in a seeding tank so as to obtain seeds for fermentation; c) inoculating the seeds for fermentation onto a fermenter and fermenting said seeds; d) adjusting the fermentation liquid to be basic by using an organic or inorganic base, and filtering so as to obtain wet mycelia; e) treating the wet mycelia with a hydrophobic non-polar organic solvent; f) mixing the wet mycelia with an organic solvent of ester and obtaining a concentrated solution by extracting; g) adding a saturated monohydric alcohol into the concentrated solution, and filtering and crystallizing so as to obtain pure ss-carotene. The content of the ss-carotene in the present invention exceeds 96%, and the yield is above 85%.