Scholarlink

<p><i>Caryocar brasiliense</i> (pequi), a native fruit of the Brazilian Cerrado, is a rich source of bioactive compounds—particularly carotenoids and phenolics—yet its high lipid content and pronounced seasonality restrict industrial utilization. This study evaluated the effects of wall material composition (maltodextrin, MD, and whey protein concentrate, WPC, at varying ratios) and outlet air temperature on the physicochemical and morphological properties of spray‑dried microencapsulated pequi pulp. A fractional factorial Box–Hunter design was applied using the following independent variables: outlet air temperature (80–90&#xa0;°C), MD concentration (10–20%), and WPC concentration (0–10%). The resulting powders were characterized for physicochemical, morphological, and antioxidant properties (total phenolic content (TPC) and ABTS, DPPH, and FRAP assays). The processing variables significantly affected particle characteristics, with WPC concentration showing the strongest positive influence on phenolic retention and antioxidant capacity. Among the evaluated experimental conditions, the 10:10 MD:WPC ratio and outlet air temperature of 80&#xa0;°C resulted in the highest retention of total phenolic compounds and antioxidant activity, while maintaining desirable physicochemical properties. The agreement between predicted and observed values under this condition indicated adequate model performance within the experimentally investigated domain. Overall, microencapsulation of pequi pulp is an effective technological approach for producing functional ingredients, reinforcing the value of predictive modeling in optimizing spray‑drying operations for industrial applications<i>.</i></p> Graphical Abstract <p></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

First-order Modeling of Wall Composition and Outlet Temperature Effects on Particle Morphology and Antioxidant Properties of Spray-dried Pequi (Caryocar brasiliense) Pulp Powders

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年7月30日

查看全文
  • Roberto Braz da Silva Filho,
  • Daniel Velloso Cabral,
  • Dennia Pires de Amorim Trindade,
  • Danilo Átila Brigido de Morais,
  • Joaquín Gomez Estaca,
  • Tatianne Ferreira de Oliveira,
  • Flavio Alves da Silva,
  • Juliana Aparecida Correia Bento,
  • Julio Cesar Colivet Briceno

摘要

Caryocar brasiliense (pequi), a native fruit of the Brazilian Cerrado, is a rich source of bioactive compounds—particularly carotenoids and phenolics—yet its high lipid content and pronounced seasonality restrict industrial utilization. This study evaluated the effects of wall material composition (maltodextrin, MD, and whey protein concentrate, WPC, at varying ratios) and outlet air temperature on the physicochemical and morphological properties of spray‑dried microencapsulated pequi pulp. A fractional factorial Box–Hunter design was applied using the following independent variables: outlet air temperature (80–90 °C), MD concentration (10–20%), and WPC concentration (0–10%). The resulting powders were characterized for physicochemical, morphological, and antioxidant properties (total phenolic content (TPC) and ABTS, DPPH, and FRAP assays). The processing variables significantly affected particle characteristics, with WPC concentration showing the strongest positive influence on phenolic retention and antioxidant capacity. Among the evaluated experimental conditions, the 10:10 MD:WPC ratio and outlet air temperature of 80 °C resulted in the highest retention of total phenolic compounds and antioxidant activity, while maintaining desirable physicochemical properties. The agreement between predicted and observed values under this condition indicated adequate model performance within the experimentally investigated domain. Overall, microencapsulation of pequi pulp is an effective technological approach for producing functional ingredients, reinforcing the value of predictive modeling in optimizing spray‑drying operations for industrial applications.

Graphical Abstract