Process for preparing a kind of herbal essence
A process and technology of bitter gourd essence, applied in the field of preparing a kind of herbal essence powder, can solve the problems of short shelf life, weakened efficacy, high cost and the like
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example 1
[0060]Example 1: 5 kg of fresh immature green seeded Linn's bitter gourd were washed to remove dust and other excess particles. Chop and grind the washed bitter gourd, and add about 500ml of water to obtain a uniform melon pulp. The melon pulp is then filtered with an upper and lower vacuum filter to separate the melon juice. The melon juice was then acidified with 15% citric acid under continuous stirring to adjust the pH to 4.0. Stir the melon juice continuously for 30 minutes and recheck the pH. After the pH value stabilized, the sour melon juice was neutralized with 15% sodium hydroxide solution to obtain a pH value of 7.0. Then stir the neutralized melon juice for 30 minutes, and check the pH value again to confirm that the pH value is 7.0. The melon juice with a neutral pH was then concentrated under a constant vacuum of 700 mmHg and 55°C to obtain a melon juice with 18 brix (complete solids content). Using a vacuum drier with a temperature adjusted to 60° C. and red...
example 2
[0064] Example 2: 5 kg of fresh immature green seeded Linn's bitter gourd were washed to remove dust and other excess particles. Chop and grind the washed bitter gourd, and add about 500ml of water to obtain a uniform melon pulp. Then use a high-speed centrifuge to filter the melon pulp to separate the melon juice. The melon juice was then acidified with 15% citric acid under continuous stirring to adjust the pH to 4.0. Stir the melon juice continuously for 30 minutes and recheck the pH. After the pH value stabilized, the sour melon juice was neutralized with 15% sodium hydroxide solution to obtain a pH value of 7.0. Then stir the neutralized melon juice for 30 minutes, and check the pH value again to confirm that the pH value is 7.0. The melon juice with a neutral pH was then concentrated under a constant vacuum of 700 mmHg and 55°C to obtain a melon juice with 16 brix (complete solids content). The concentrated melon juice was dried using a spray dryer with an inlet temp...
example 3
[0067] Example 3: 5 kg of fresh immature green seeded Linn's bitter gourd were washed to remove dust and other excess particles. Chop and grind the washed bitter gourd, and add about 500ml of water to obtain a uniform melon pulp. Then use a high-speed centrifuge to filter the melon pulp to separate the melon juice. The melon juice was then acidified with 15% oxalic acid under continuous stirring to adjust the pH to 4.0. Stir the melon juice continuously for 30 minutes and recheck the pH. After the pH stabilized, the sour melon juice was neutralized with a 15% calcium hydroxide solution to obtain a pH of 7.0. Then stir the neutralized melon juice for 30 minutes, and check the pH value again to confirm that the pH value is 7.0. The melon juice with a neutral pH was then concentrated under a constant vacuum of 700 mmHg and 55°C to obtain a melon juice with 18 brix (complete solids content). The concentrated melon juice was dried using a freeze dryer adjusted to -46°C and redu...
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