Absrtact: In order to explore the characteristics of microwave drying areca nut and its effect on quality, the drying curve and rehydration curve of areca nut were studied with fresh areca nut as test sample and hot air drying as control, and the effects of different drying methods on total acid, total sugar and polyphenol content of areca nut were compared.
The results showed that the rehydration quality of P10 low-power microwave drying equipment was better than that of P30 high-power microwave drying equipment, and the nutrients were well preserved. Therefore, P10 low-power microwave drying could replace hot air drying method for betel nut in the future. The research results could provide theory and Practice for industrial microwave drying of betel nut. Practice guidance.
Key words: areca; hot air drying; microwave drying areca; drying characteristics; rehydration characteristics; quality
Introduction
Areca is a dried and mature seed of palm areca, belonging to areca, also known as “Ren”, “bin men” and “Lang Yu”. Hainan is a major province of areca in China. Areca industry is the first pillar industry in the province.
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