Areca nut is one of the four major South medicines in China. It has the functions of solid tooth sterilization, elimination of food, elimination of athlete's foot and deworming. The fresh betel nut fruit is stored under normal temperature conditions, and the peel shrinks, loses water and yellows in a week or so, and loses the edible value. Therefore, water loss and yellowing during storage are problems that need to be solved in betel nut preservation.
Plant growth regulators are widely used in the preservation of fruits and vegetables, such as 6-benzylaminoadenine, gibberellin, indole acetic acid and other growth regulating substances, usually one of the components of preservatives. Spraying gibberellin (GA3) before harvesting effectively inhibited the degradation of chlorophyll and protein of parsley and the increase of amino acids, and delayed the promotion of ethylene on the senescence of parsley. GA3 treatment can inhibit the biosynthesis of ethylene in fruit trees such as jujube, peach and persimmon, and delay the appearance of ethylene release peak, thereby inhibiting the action of ethylene; 6-benzyl adenine (6-BA) is a kind of cytokinin. Inhibition of protease, hydrolysis enzyme synthesis. Studies have shown that exogenous 6-BA can neutralize the inhibition of chlorophyll synthesis by abscisic acid. Delaying the rate of greening in Shanghai, it is also used in the preservation of post-harvest lotus, bracken and cowpea; the treatment of fruit wax coating is safe, simple and easy, low cost and operability, in litchi, purple sweet potato, etc. It has application in storage and preservation, and the effect is remarkable.
Areca genus is a climacteric fruit, and low temperature storage can delay the appearance of late peaks of fruit. At the same time, the use of preservatives in the storage of betel nut and the use of low temperature treatment will have a better storage effect. On this basis, the effect of the composite film preservative on the water loss and color change of the betel nut at different temperatures was further studied, and the insurance mechanism of the composite film preservative at different temperatures was studied.
