This work aimed to evaluate the influence of dry and wet heat processing on the antioxidant profile and antioxidant activity in ora-pro-nobis leaves. The leaves were collected, washed, and separated into three groups for the treatments: application of moist heat (hydrothermal cooking at 100 ºC / 4 minutes), application of dry heat (70 ºC / 8 hours), and control (raw material). The characteristics were evaluated: total soluble solids (SST), total solids (ST), pH, phenolic compounds (CPT), flavonoids (FT), anthocyanins (AT), antioxidant activity (AA). To identify the chemical profile and the chemical profile, fingerprints were obtained using PS / MS paper spray. The content of SST and ST decreased with moist heat. The CFT content increased with wet heat (12.43 ± 0.98) and decreased with dry heat (4.25 ± 0.93 g EAG 100 g-1). There was a decrease in the FT and AT content in the leaves processed with dry heat (132.67 ± 20.28 mg 100 g-1 and 19.70 ± 3.34 mg CG 100 g-1, respectively). AA decreased in both processes, which was higher in ora-pro-nobis leaves processed with dry heat (0.82 ± 0.0033 µmol ET g-1). 26 phenolic compounds were identified in the ora-pro-nob leaves by paper spray. The chemical profile, except for the substances 4,5-dimethyl-2,6-octadiene and methyl ester linolenic acid was not affected by thermal processing. Knowing the effect of food processing is important to understand the behavior of compounds that act beneficially on human health.
Ultrasound is a promising technology that emerges as a sustainable and low‐cost alternative to conventional food processing. Various advantages are related to this technology, including the improvement of food quality, maintenance of food preservation, reduced processing time, and monitoring of food processes. Despite the extensive knowledge about ultrasonic technologies, it is continually updated, and new applications are constantly discovered. Reported results show that ultrasound can be applied, alone or in assisted conditions, to several food matrices, such as meats, fresh products, juices, cereals, and fermented products. However, its use still presents some challenges that include the difficulty of large‐scale applications. Recent studies evidenced current prospects for ultrasound technology, especially by improving novel food processes, such as depolymerization, extraction, emulsion production, and even assisting the removal of pesticides in fresh foods. This review summarizes the main applications and strategies of ultrasound technology in food processing. In addition, the challenges and future perspectives of this technology are also updated. Practical applications Ultrasound is a widespread technology in food processing, and a great number of applications have been attributed to ultrasound in last decades. This low‐cost alternative offers several advantages, such as reduction in time processing (e.g., elimination of process steps), enhanced efficiency, better attributes to different food products, also, its nondestructive nature allows the retention of product characteristics (textural, nutritional, and sensorial aspects). All these properties made ultrasound an interesting tool for improving food shelf life. Recently, new ultrasound utilities had been discovered, especially in association other processing techniques. An update on ultrasound applications is currently required, providing further essential scope for industrial implementation of ultrasound (i.e., processing operations, food matrix, benefits, limitations).
Objetivou-se desenvolver uma formulação de creme de jabuticaba com a utilização do fruto integral (polpa, casca e semente) e comparar com uma formulação utilizando apenas a polpa com semente. Para ambas formulações foram utilizados os mesmos ingredientes, esses foram homogeneizados e posteriormente congelados (-20 °C ±2). Avaliou-se as características físico-químicas, o teor de compostos fenólicos, antocianinas, flavonoides e carotenoides dos produtos finais. Os cremes de jabuticaba foram desenvolvidos em três repetições e as análises foram realizadas em triplicata. Para as análises de variância dos dados obtidos foi realizada a análise estatística através do programa R Core Team (2017) e para a diferença aplicou-se o Teste de Tuckey com 5 % de probabilidade. Verificou-se que não houve diferença estatística entre os cremes em relação aos parâmetros físico-químicos, compostos fenólicos (966,36 - 1620,89 mg EAG/100g) e de carotenoides (0,018 - 0,061 µg carotenoides/mg). Entretanto, o creme de jabuticaba com casca apresentou maiores valores para os parâmetros colorimétricos L*, C* e h* e para os teores médios de flavonoides (16,26 mg/100g) e antocianinas (27,45 mg/100g). O creme de jabuticaba adicionado de casca é mais vantajoso pois pode ser uma alternativa para o aproveitamento integral do fruto, evitando assim o desperdício das cascas, as quais são ricas em fitoquímicos, importantes não só para a coloração do produto final, o que dispensa o uso de corantes sintéticos na formulação, como também para o fortalecimento do sistema imunológico.
Editora Direitos para esta edição cedidos à Atena Editora pelos autores. Todo o conteúdo deste livro está licenciado sob uma Licença de Atribuição Creative Commons. Atribuição-Não-Comercial-NãoDerivativos 4.0 Internacional (CC BY-NC-ND 4.0). O conteúdo dos artigos e seus dados em sua forma, correção e confiabilidade são de responsabilidade exclusiva dos autores, inclusive não representam necessariamente a posição oficial da Atena Editora. Permitido o download da obra e o compartilhamento desde que sejam atribuídos créditos aos autores, mas sem a possibilidade de alterá-la de nenhuma forma ou utilizá-la para fins comerciais. A Atena Editora não se responsabiliza por eventuais mudanças ocorridas nos endereços convencionais ou eletrônicos citados nesta obra. Todos os manuscritos foram previamente submetidos à avaliação cega pelos pares, membros do Conselho Editorial desta Editora, tendo sido aprovados para a publicação.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.