Pu'er tea cream containing rich gamma-aminobutyric acid and preparation method of Pu'er tea cream
A technology of aminobutyric acid and raw Pu'er tea, applied in the field of food industry, can solve the problems of destroying the aroma, color and taste of tea leaves, uncertain safety of γ-ray sterilization, etc., to reduce the loss of heat-sensitive substances, promote aging and maturity, High process efficiency
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[0029] Example 1
[0030] Take 1kg of bran and 3kg of crushed black tea. Mix the bran and crushed black tea, rinse with normal temperature water, and then extract with 40kg of hot water at a temperature of 85°C. The extraction time is 20min, filtered, and the filtrate is sterilized at 121.1°C for 15min. Cool down to obtain liquid medium; pick purple Monascus species, inoculate it in liquid medium, culture in 24 ℃ shake flask for 72 hours to obtain Monascus starter; take another species of Bacillus megaterium and inoculate it in liquid medium at 30 Cultivate in a shake flask at ℃ for 72h to obtain Bacillus megaterium starter.
[0031] Take 40kg of raw Pu'er tea and 30kg of ripe Pu'er tea, mix them and place them in an extraction container, extract with hot water at a temperature of 65°C, filter the extract, and concentrate the filtrate until the dry matter reaches 22wt% to obtain concentrated tea soup (take concentrated tea soup 0.05 kg directly dried into tea paste as a control sa...
Example Embodiment
[0032] Example 2
[0033] Take 1.5kg of bran and 2kg of broken black tea, mix the bran and broken black tea, rinse with normal temperature water, and then extract with 30kg of hot water at 90℃, extraction time 15min, filter, and sterilize the filtrate at 121.1℃ for 15min , Cooled to obtain a liquid medium; pick the purple Monascus species, inoculate it in the liquid medium, culture at 28°C in a shake flask for 60 h to obtain the Monascus starter; take another species of Bacillus megaterium, inoculate it in the body medium, Cultivate in a shake flask at 34°C for 60 hours to obtain the Bacillus megaterium starter.
[0034] Take 55kg of raw Pu'er tea and 25kg of ripe Pu'er tea, mix them in an extraction container, extract with hot water at a temperature of 75°C, filter the extract, and concentrate the filtrate until the dry matter reaches 30wt% to obtain concentrated tea soup (take concentrated tea soup 0.05 kg directly dried into tea paste as a control sample for comparison); add 0....
Example Embodiment
[0035] Example 3
[0036] Take 2kg of bran and 1kg of crushed black tea, mix the bran and crushed black tea, rinse with normal temperature water, and then extract with 20kg of hot water at 95°C for 10 minutes, filter, and sterilize the filtrate at 121.1°C for 15 minutes. Cool to obtain liquid culture medium; pick purple Monascus species, inoculate it in liquid medium, culture at 32°C in a shake flask for 48 hours to obtain Monascus starter; take another species of Bacillus megaterium and inoculate it in liquid medium at 38 Cultivation in a shake flask at ℃ for 48 hours to obtain the Bacillus megaterium starter.
[0037] Take 70kg of raw Pu'er tea and 20kg of ripe Pu'er tea, mix them in an extraction container, extract with hot water at a temperature of 85°C, filter the extract, and concentrate the filtrate until the dry matter reaches 38wt% to obtain a concentrated tea soup (take concentrated tea soup 0.05 kg directly dried into tea paste as a control sample for comparison); add 0...
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