領(lǐng)學(xué)術(shù)科研之先,創(chuàng)食品科技之新
—— 中國(guó)食品雜志社
期刊集群
Hyperspectral imaging for one-step growth simulation of Brochothrix thermosphacta in chilled beef during storage
來(lái)源:導(dǎo)入 閱讀量: 42 發(fā)表時(shí)間: 2025-02-18
作者: Xiaohua Liu, Binjing Zhou, Jin Song, Kang Tu, Jing Peng, Weijie Lan, Jing Xu, Jie Wu, Juqing Wu, Leiqing Pan
關(guān)鍵詞: Brochothrix thermosphacta; Beef; Hyperspectral imaging; Growth simulation; One-step analysis; Predictive microbiology
摘要:

In this work, one-step growth models using hyperspectral imaging (HSI) (400–1 000 nm) were successfully developed in order to estimate the microbial loads, minimum growth temperature (Tmin) and maximum specific growth rate (μmax) of Brochothrix thermosphacta in chilled beef at isothermal temperatures (4–25 °C). Three different methods were compared for model development, particularly using (Model I) the predicted microbial loads from partial least squares regression of the whole spectral variables; (Model II) the selected spectral variables related to microbial loads; and (Model III) the first principal scores of HSI spectra by principal component analysis. Consequently, Model I showed the best ability to predict the microbial loads of B. thermosphacta, with the coefficient of determination (Rv2) and root mean square error in internal validation (RMSEV) of 0.921 and 0.498 (lg (CFU/g)). The Tmin (–12.32 °C) and μmax can be well estimated with R2 and root mean square error (RMSE) of 0.971 and 0.276 (lg (CFU/g)), respectively. The upward trend of μmax with temperature was similar to that of the plate count method. HSI technique thus can be used as a simple method for one-step growth simulation of B. thermosphacta in chilled beef during storage.

電話: 010-87293157 地址: 北京市豐臺(tái)區(qū)洋橋70號(hào)

版權(quán)所有 @ 2023 中國(guó)食品雜志社 京公網(wǎng)安備11010602060050號(hào) 京ICP備14033398號(hào)-2

丹江口市| 白银市| 措美县| 交口县| 阳泉市| 德钦县| 内江市| 庄浪县| 金乡县| 许昌县| 卢龙县| 凤冈县| 黄石市| 高清| 文登市| 彩票| 赣州市| 阿坝县| 太原市| 阳谷县| 大邑县| 河北区| 蚌埠市| 巴南区| 栾城县| 灌南县| 垫江县| 绿春县| 根河市| 宁德市| 临沂市| 城口县| 瑞丽市| 永寿县| 上思县| 垦利县| 太仆寺旗| 青川县| 吴桥县| 西乡县| 张家口市|