<p>In osmotic dehydration (OD), the goal is to use healthier agents and reduce solute incorporation. Based on this, isomaltulose was used as the osmotic agent, and sodium alginate was used as the coating in this study. Coated and uncoated Formosa papaya cubes were subjected to OD with isomaltulose (25% and 35% w/w) and with and without vacuum application (80&#xa0;kPa for the first 20&#xa0;min). The OD kinetics were evaluated up to 300&#xa0;min at 25&#xa0;°C. The coating application reduced solid gain by up to 26% while maintaining water loss, and the condition with the least solute incorporation included the simultaneous use of coating and vacuum. Additionally, the coated samples showed lower water activity and higher preservation of phenolic compounds. Solutions with higher concentrations of isomaltulose resulted in a greater solid gain, water loss, weight reduction, and shrinkage, and up to a 17% reduction in moisture content. Vacuum application preserved antioxidant capacity and resulted in less browning and morphological deformation of the samples.</p>

错误:搜索内容不能为空,请输入英文关键词
错误:关键词超出字数限制,请精简
高级检索

Osmotically Dehydrated Formosa Papaya with Isomaltulose: Influence of Vacuum and Alginate Coating Use on Mass Transfer and Physicochemical Quality

  • Matheus de Souza Cruz,
  • Jefferson Luiz Gomes Corrêa,
  • Leandro Levate Macedo,
  • Amanda Aparecida de Lima Santos,
  • Jhenifer Cristina Carvalho Santos,
  • Guilherme Mathias Lopes,
  • Paula Giarolla Silveira

摘要

In osmotic dehydration (OD), the goal is to use healthier agents and reduce solute incorporation. Based on this, isomaltulose was used as the osmotic agent, and sodium alginate was used as the coating in this study. Coated and uncoated Formosa papaya cubes were subjected to OD with isomaltulose (25% and 35% w/w) and with and without vacuum application (80 kPa for the first 20 min). The OD kinetics were evaluated up to 300 min at 25 °C. The coating application reduced solid gain by up to 26% while maintaining water loss, and the condition with the least solute incorporation included the simultaneous use of coating and vacuum. Additionally, the coated samples showed lower water activity and higher preservation of phenolic compounds. Solutions with higher concentrations of isomaltulose resulted in a greater solid gain, water loss, weight reduction, and shrinkage, and up to a 17% reduction in moisture content. Vacuum application preserved antioxidant capacity and resulted in less browning and morphological deformation of the samples.