生物加工过程2024，Vol.22Issue(4)：432-439,8.DOI:10.3969/j.issn.1672-3678.2024.04.010
挤压刺梨牛肉干中维生素C损失预测模型
Prediction model for vitamin C loss in extruded prickly Rosa roxburghii Tratt beef jerky
摘要
Abstract
The purpose of this paper is to explore the principle of vitamin C loss in extruded Rosa roxburghii Tratt beef jerky and investigate the"black box"problem of nutrient loss during the extrusion process.By using Rosa roxburghii Tratt beef jerky produced with a twin-screw extruder,we measured the vitamin C contents before and after extrusion by HPLC,then calculated the vitamin C loss rate during this process.Moreover,we collected the residence time of the material in the extruder by using toner as the tracer,and the mean value was considered to be the reaction time.Based on the kinetic analysis of VC loss rates under different extrusion conditions with various barrel temperatures and screw speeds,a VC loss rate prediction model was established using polynomial regression analysis method.As a result,the VC loss rates were negatively correlated with barrel temperatures and screw speeds,despite the amounts of Rosa roxburghii Tratt.In addition,dynamic analysis could generate the vitamin C loss rate constant,which was between 0.003 54 and 0.006 05 s-1 under different extrusion conditions.Further polynomial regression analysis provided the prediction models of k and tm for different barrel temperatures and screw rotation speeds,with the R2 values as 0.756 4 and 0.971 2,respectively.The well-fitted models could reasonably predict the nutrient loss in the extrusion process.关键词
双螺杆挤压/刺梨牛肉干/维生素C损失率/预测模型/营养物质损失Key words
twin-screw extrusion/Rosa roxburghii Tratt beef jerky/vitamin C loss rate/prediction model/nutrient loss分类
轻工纺织引用本文复制引用
马秀兰,李静鹏,苏婕妤,张广涛,张汝平,王明科,赖虹睿,邓力..挤压刺梨牛肉干中维生素C损失预测模型[J].生物加工过程,2024,22(4):432-439,8.基金项目
国家自然科学基金(32260642) （32260642）
贵州省科技计划(黔科合支撑[2022]重点002号、黔科合基础-ZK[2022]一般066、黔科合支撑[2021]一般177) （黔科合支撑[2022]重点002号、黔科合基础-ZK[2022]一般066、黔科合支撑[2021]一般177）
贵州省教育厅项目(S202210657097) （S202210657097）
贵州大学引进人才科研项目(贵大人基合字(2020)号) （贵大人基合字(2020）
