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引用次数: 0
摘要
本文探讨了超声波（US）辅助等离子体活化水（PAW）或去离子水（DW）预处理与电流体力学（EHD）相结合对山药干燥的影响。研究了四种预处理（等离子体活化水与超声波相结合（PAW + US）、等离子体活化水（PAW）、去离子水与超声波相结合（DW + US）和去离子水（DW）（对照））的活性特征及其对 EHD 干燥过程中山药的干燥特性、复水率、色泽、还原糖、总酚、红外光谱和挥发性成分的影响。结果表明，经超声波预处理（US）和等离子体活化水（PAW）结合预处理的介质具有较低的 pH 值（比 US + DW 低 53.84 %）、较高的亚硝酸根离子浓度（是 US + DW 的 311 倍）、较高的氧化还原电位（比 US + DW 高 50.58 %）和较高的电导率（是 US + DW 的 99.29 倍）。而超声波预处理（US）与等离子体活化水（PAW）干燥相结合，可加快干燥速度，提高再水化率，提高白度 L *（比 US + DW 高 18.35 %）和白度（比 US + DW 高 1.1 %），保留更多的还原糖（比 US + DW 高 10.96 %）和总酚（比 US + DW 高 14.04 %），并增加挥发性成分的种类和含量。这为超声波（US）结合等离子活化水（PAW）预处理在电流体动力干燥中的应用提供了实验和理论依据。
Effects of ultrasound-assisted plasma-activated water pretreatment combined with electrohydrodynamics on drying characteristics, active ingredients and volatile components of yam (Dioscorea opposita).
This paper explores the effect of ultrasound (US) assisted plasma-activated water (PAW) or deionized water (DW) pretreatment combined with electrohydrodynamics (EHD) on the drying of yam. The activity characteristics of four pretreatments (plasma activated water combined with ultrasound (PAW + US), plasma activated water (PAW), deionized water combined with ultrasound (DW + US), and deionized water (DW) (control)) and their effects on drying characteristics, rehydration rate, color, reducing sugars, total phenols, infrared spectra, and volatile compositions of yam under EHD drying process were investigated. The results showed that the media pretreaded by ultrasound (US) combined with plasma-activated water (PAW) has lower media of pH (53.84 % lower than that of US + DW), higher nitrite ion concentration (311 times over US + DW), higher oxidation reduction potential (50.58 % higher than that of US + DW), and higher electrical conductivity (99.29 times over US + DW). And ultrasonic pretreatment (US) combined with plasma-activated water (PAW) drying resulted in faster drying, better rehydration rate, higher brightness L * (18.35 % higher than that of US + DW) and whiteness (1.1 % higher than that of US + DW), and retention of more reducing sugars (10.96 % higher than that of US + DW) and total phenols (14.04 % higher than that of US + DW), and a higher variety and content of volatile components. This provides an experimental and theoretical basis for the application of ultrasonic (US) combined with plasma-activated water (PAW) pretreatment to electrohydrodynamic drying.
期刊介绍：
Ultrasonics Sonochemistry stands as a premier international journal dedicated to the publication of high-quality research articles primarily focusing on chemical reactions and reactors induced by ultrasonic waves, known as sonochemistry. Beyond chemical reactions, the journal also welcomes contributions related to cavitation-induced events and processing, including sonoluminescence, and the transformation of materials on chemical, physical, and biological levels.
Since its inception in 1994, Ultrasonics Sonochemistry has consistently maintained a top ranking in the "Acoustics" category, reflecting its esteemed reputation in the field. The journal publishes exceptional papers covering various areas of ultrasonics and sonochemistry. Its contributions are highly regarded by both academia and industry stakeholders, demonstrating its relevance and impact in advancing research and innovation.
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