中国农业机械化科学研究院集团有限公司 主管

北京卓众出版有限公司 主办

枳壳产地趁鲜加工中发汗与去瓤预处理工艺优化

Pretreatment process optimization for sweating and pulp removal during origin fresh processing of Aurantii fructus

  • 摘要: 系统评估枳壳产地趁鲜加工中发汗和去瓤预处理对枳壳的干燥特性、颜色和抗氧化能力的影响。结果表明,去瓤预处理及趁鲜切片工艺显著(P<0.05)缩短枳壳干燥时间;在不发汗与发汗处理中,去瓤预处理枳壳干燥时间分别缩短10%和35%,去瓤及趁鲜切片工艺协同处理最高可以使干燥时间缩短75%。发汗预处理进一步促进去瓤预处理枳壳在干燥过程中颜色加深(由青绿色逐渐转化为绿褐色),抗氧化能力提升及总黄酮的保留,其中去瓤与发汗协同处理使总黄酮增加33.52%,主要归因于发汗(35 °C、湿度75%处理24 h)加速枳壳内部水分的扩散,从而有效地缩短后续干燥时间;刺激次生代谢产物转化,缓解干燥过程对枳壳造成的热损伤。综上所述,趁鲜切片工艺显著提高枳壳干燥效率,去瓤与发汗作为联合预处理方式,在提升枳壳干燥效率、改善色泽品质、增强抗氧化能力及保留生物活性成分方面具有显著优势,为优化产地初加工工艺提供理论依据与技术路径。

     

    Abstract: Systematic evaluation was conducted on effects of sweating and pulp removal pretreatment during origin fresh processing with drying characteristics, color, and antioxidant capacity of Aurantii fructus.Results showed that pulp removal and fresh slicing significantly(P<0.05)shortened drying time of Aurantii fructus.Pulp removal and non-sweating treated samples reduced drying times of Aurantii fructus by 10%, while pulp removal and sweating treatment shortened by 35%.Pulp removal and fresh slicing treatment reduced drying time by up to 75%.Sweating pretreatment further promoted color darkening of Aurantii fructus in drying process(from light green to greenish-brown), enhanced antioxidant capacity, and preserved total flavonoids content.Sweating and pulp removal treatment increased total flavonoids content by 33.52%, primarily attributed to sweating(35 °C, 75% humidity for 24 hours)accelerating internal moisture diffusion within Aurantii fructus, thereby effectively shortening subsequent drying time; stimulating conversion of secondary metabolites; and alleviating thermal damage caused by drying process.In summary, fresh slicing process significantly improved drying efficiency of Aurantii fructus.Combining pulp removal with sweating as a dual pretreatment demonstrated significant advantages in enhancing drying efficiency, improving color quality, strengthening antioxidant capacity, and retaining bioactive components.A theoretical basis and technical pathways for optimizing local primary processing techniques at origin have been provided.

     

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