首页|Effect of ultrasound on cell viability and storage of dehydrated jackfruit (Artocarpus heterophyllus Lam.) impregnated with Lactobacillus casei

Effect of ultrasound on cell viability and storage of dehydrated jackfruit (Artocarpus heterophyllus Lam.) impregnated with Lactobacillus casei

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  • NSTL
  • Elsevier
This work evaluated use of ultrasound on probiotic concentration and storage stability of dehydrated jackfruit impregnated with Lactobacillus casei. Impregnation was performed at atmospheric pressure (AI) or vacuum (VI), and with ultrasound (US + AI; US + VI) pretreatment. The impregnated jackfruit was dried at 50 degrees C and stored in vacuum packaging for 28 days at 4 degrees C. Ultrasound pretreatment and impregnation resulted in higher moisture content, showing greater capacity for infiltration of the impregnation liquid. Regarding to drying, the control sample (without ultrasound and impregnation) reached the dynamic equilibrium in 220 min, while AI impregnated sample showed a shorter time (64 min). Higher probiotic concentration was found after the US + AI treatment when compared with the US + IV (p < 0.05). Regarding the storage study, the US + AI treatment allowed the product to have a concentration of 7.99( )+/- 0.07 log(10) CFU/g, and after 28 days, it reduced to 0.75 log(10) CFU/g. The impregnation resulted in a microbial content, after drying, in its less effective process, of 6.79 +/- 0.20 log(10) CFU/g, a minimum concentration enough to be considered a probiotic product. The impregnation method influenced both drying and probiotic concentration during the process and storage of the product.

DryingImpregnationUltrasoundSurvival rate

Rocha, Nathalia Santos、da Silva, Elaine Maria、Batista de Medeiros, Rafael Augusto、da Silva Junior, Edvaldo Vieira、Sakugawa Shinohara, Neide Kazue、dos Santos Cortez, Neila Mello、Azoubel, Patricia Moreira、Souza Bernardino, Allan Victor

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Univ Fed Pernambuco, Dept Nutr, Av Moraes Rego,S-N,Cidade Univ, BR-50670901 Recife, PE, Brazil

Univ Fed Pernambuco, Dept Engn Quim, Av Prof Arthur Sa,S-N,Cidade Univ, BR-50670901 Recife, PE, Brazil

Univ Fed Rural Pernambuco, Dept Tecnol Rural, Rua Dom Manoel Medeiros,S-N, BR-58050900 Recife, PE, Brazil

2021

10.1016/j.lwt.2020.110790

LWT-Food Science & Technology

LWT-Food Science & Technology

ISSN：0023-6438
年,卷(期)：2021.139
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