About the harvesting and processing of roselle
2019-09-03 07:04:46
First, medicinal harvesting and processing
1. The main product of the harvested Osmanthus eggplant is harvested and it is wrapped in fruit. It takes about 8 months from sowing to harvesting. In late mid-November, Ye Huang Seed Black is harvested. When harvesting, cut the fruit branches, remove the buds and fruit, and then dry for 1 day. After the shrinkage, remove the flower buds.
2. Processing method of dislocation, hand care pedicel, with bullet shell to pull out the fruit. The calyx should be kept intact, not peeled off, then dried on a clean straw mat or bamboo basket, or dried at 40 °C. The sepals should have good color and low loss of inclusions. General mu production of dry film 50 ~ l00 kg.
Second, pigment recovery and processing
1. Harvest Roselle flowers at the flowering season, and separate the sorghum slices for drying and use.
2. Pigment extraction Roselle can be extracted from roselle red pigment, this pigment is an anthocyanin. The conventional method for extracting anthocyanins from plants is to use a low-boiling alcohol (ethanol) of an inorganic acid (usually hydrochloric acid); to use solvents for extraction, or to use water as a solvent for extraction, and to cut the roselle pods properly. After being crushed, store it in the cylinder, add a certain volume of distilled water preheated to 50°C, and mix the material in the ratio of 1:10. Immediately move it into a thermostatic pot heated to 60°C, and take care to prevent evaporation of water. The time (4 hours) removes the extract. Filter, cool to room temperature, and concentrate the extract concentration.
1. The main product of the harvested Osmanthus eggplant is harvested and it is wrapped in fruit. It takes about 8 months from sowing to harvesting. In late mid-November, Ye Huang Seed Black is harvested. When harvesting, cut the fruit branches, remove the buds and fruit, and then dry for 1 day. After the shrinkage, remove the flower buds.
2. Processing method of dislocation, hand care pedicel, with bullet shell to pull out the fruit. The calyx should be kept intact, not peeled off, then dried on a clean straw mat or bamboo basket, or dried at 40 °C. The sepals should have good color and low loss of inclusions. General mu production of dry film 50 ~ l00 kg.
Second, pigment recovery and processing
1. Harvest Roselle flowers at the flowering season, and separate the sorghum slices for drying and use.
2. Pigment extraction Roselle can be extracted from roselle red pigment, this pigment is an anthocyanin. The conventional method for extracting anthocyanins from plants is to use a low-boiling alcohol (ethanol) of an inorganic acid (usually hydrochloric acid); to use solvents for extraction, or to use water as a solvent for extraction, and to cut the roselle pods properly. After being crushed, store it in the cylinder, add a certain volume of distilled water preheated to 50°C, and mix the material in the ratio of 1:10. Immediately move it into a thermostatic pot heated to 60°C, and take care to prevent evaporation of water. The time (4 hours) removes the extract. Filter, cool to room temperature, and concentrate the extract concentration.
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