Kaikang Chen , Hui Wang , Yanwei Yuan , Bo Zhao , Mehdi Torki , Yongjun Zheng
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Quantity and chemical components of essential oil of “Mentha x piperita L.” leaves under ultrasonic/hot air drying
This study was conducted to evaluate the influence of combined high-intensity ultrasonic power/hot air drying on quantity and chemical constituents of essential oil of peppermint leaves. According to the experimental findings, in comparison with the fresh leaves, both increment and decrement were observed in yielded essential oil from the dried samples. Increasing drying temperature in the practiced range reduced the oil yield. The maximum oil yield (26.42 g/kg dry matter) belonged to the samples dried at 40 °C and 360 W while the minimum value (9.93 g/kg dry matter) was obtained at air temperature of 70 °C with no ultrasonic power. Both the air temperature and ultrasonic power showed no definite influence on main chemical groups of the oil. In point of quality view, drying treatment of 70 °C and ultrasonic power of 270 W produced the highest quality essential oil.
期刊介绍：
JARMAP is a peer reviewed and multidisciplinary communication platform, covering all aspects of the raw material supply chain of medicinal and aromatic plants. JARMAP aims to improve production of tailor made commodities by addressing the various requirements of manufacturers of herbal medicines, herbal teas, seasoning herbs, food and feed supplements and cosmetics. JARMAP covers research on genetic resources, breeding, wild-collection, domestication, propagation, cultivation, phytopathology and plant protection, mechanization, conservation, processing, quality assurance, analytics and economics. JARMAP publishes reviews, original research articles and short communications related to research.
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