Hormone:
A chemical
substance produced in the body that controls and regulates the activity of
certain cells or organs. Many hormones are secreted by special glands, such as
thyroid hormone produced by the thyroid gland. Hormones are essential for every
activity of life, including the processes of digestion, metabolism, growth,
reproduction, and mood control. Many hormones, such as neurotransmitters, are
active in more than one physical process.
Endocrine:
Pertaining to
hormones and the glands that make and secrete them into the bloodstream through
which they travel to affect distant organs. The endocrine sites include the
hypothalamus, pituitary gland, pineal gland, thyroid, parathyroids, heart
(which makes atrial-natriuretic peptide), the stomach and intestines, islets of
Langerhans in the pancreas, the adrenal glands, the kidney (which makes renin,
erythropoietin, and calcitriol), fat cells (which make leptin). the testes, the
ovarian follicle (estrogens) and the corpus luteum in the ovary). Endocrine is
as opposed to exocrine. (The exocrine glands include the salivary glands, sweat
glands and glands within the gastrointestinal tract.)
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Chestnut liquid film storage and preservation technology
Chestnut liquid film storage and preservation technology is the "Eighth Five-Year Plan" research project issued by the Anhui Provincial Science and Technology Commission. The purpose is to study the reduction of insect pests, mildew and water loss in chestnuts stored at room temperature and improve the good fruit rate of chestnuts. According to the characteristics of physiological and biochemical changes in chestnut storage, a set of chestnut storage and preservation techniques, including high-efficiency, low-toxicity, low-residue liquid film preservatives, etc., was developed. This technology can artificially control the physiological changes in chestnut storage and achieve the maintenance of chestnut original. There is no change in quality and flavor. This technology passed the provincial experts' appraisal on January 25, 1994. The experts unanimously assessed that this technology was the first in China, and it was at the leading domestic level and the international advanced level. At present, chestnuts are mostly stored at low temperature overseas, and it is impossible to establish more cold storages in the chestnut production areas in China. Therefore, the preservation of chestnuts at room temperature has very important practical significance. The technical features are as follows: (1) The liquid film at room temperature is stored for 5 months, and the chestnut color, aroma, and taste are basically unchanged. (2) The liquid film preservative is highly efficient and low-toxic, and the good fruit rate can reach more than 90%. (3) Fresh chestnut residue is lower than the standards set by FAO/WHO and belongs to pollution-free fruit. (4) The liquid film preservative is easy to obtain raw materials, the price is cheap, the process is simple, the labor is saved, the time is saved, and the cost is low. Treatment of 1 kilogram of chestnut requires a preservation fee of 0.1 yuan, storage for 3 to 5 months, and profit of 0.40 to 0.5 million yuan per ton of chestnut can be obtained. This is an important way to help the mountain get rid of poverty and become rich in the mountains. Falling behind, there are important economic, social and ecological benefits. The liquid film preservative formula and treatment process are the key technologies for this achievement. The implementation of the technical points: (1) timely insecticidal treatment, so that eggs and larvae die in chestnut fruit. (2) According to the physiological changes of chestnut during storage, adding liquid film agent inhibits the activity of chestnut peroxidase, reduces respiratory intensity, reduces mildew, water loss and metabolic rate, delays chestnut aging, maintains chestnut appearance, quality and flavor. constant. (3) Regulate the temperature and humidity in the warehouse to create a suitable environment for chestnut storage. The results can be used and promoted in the Dabie Mountains, southern Anhui mountains, Henan, Hebei and Hubei chestnut production areas. Precautions: (1) The chestnut must have a high degree of ripeness and must be removed from the tender or bad fruit. (2) To kill insects in a timely manner. (3) Wash before dipping. (4) Strengthen storage management to prevent rodent damage and accidental loss.