Influence of combined hydrolyzed collagen and maltodextrin as carrier agents in spray drying of cocona pulp

Diana Patricia Vargas-Muñoz,Louise Emy Kurozawa

doi:10.1590/1981-6723.25419

Diana Patricia Vargas-Muñoz, Louise Emy Kurozawa

Open Access

https://doi.org/10.1590/1981-6723.25419

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Abstract

Abstract This work aimed to evaluate the effect of carrier agents containing maltodextrin and protein, represented by hydrolyzed collagen on the spray drying process of cocona (Solanum sessiliflorum Dunal), and on the properties of the resulting powders. We used pre-established proportions between the solids of cocona pulp and the carrier agents (P:CA), and among carrier agents themselves, maltodextrin and hydrolyzed collagen, (MD:HC). The process was carried out in a spray dryer at an inlet air temperature of 120 ºC. We prepared twelve feed solutions containing 20% of total solids, with P:CA ratios of 1:3, 1:4, 1:5 and 1:6, and MD:HC ratios of 0:100, 50:50, and 100:0. Solids recovery was obtained for the evaluation of the spray drying process. The cocona pulp powders were analyzed for moisture content, water activity, particle size distribution, mean particle diameter, chemical structure (FTIR) and color. For a P:CA of 1:6, for the sample formulated with hydrolyzed collagen only, solids recovery (96.2%) was much higher than that of the sample with maltodextrin only (39.2%). The chemical structure of cocona powders can be considered a sign of a good encapsulation process. The color of the cocona pulp powder was similar to that of the carrier agents. The formulation with highest content of hydrolyzed collagen improved the recovery of solids, guaranteed the cocona pulp encapsulation, and obtained fruit powders with bioactive properties.

Highlights

Cocona (Solanum sessiliflorum Dunal) is a fruit from Amazon, that is spread around several countries, including the Pacific coast of Colombia, Venezuela, Ecuador, Peru, and Brazil
This study aimed to evaluate the effects of different proportions of solids of cocona pulp and carrier agents (P:CA), and of different ratios of the carrier agents maltodextrin 10DE and hydrolyzed collagen (MD:Hydrolyzed collagen (HC)) on solids recovery (SR), and on the powder characteristics of moisture content, water activity, size distribution, mean particle diameter, chemical structure (FTIR) and color of particles obtained by spray drying
The results for the physicochemical composition of cocona pulp filtered (Table 2) were similar to those previously reported in literature (Jiménez, 2018; Serna-Cock et al, 2015): a content high in sugar (48.16%) and acidity (1.94%), justifying the addition of carrier agents to reduce the stickiness during spray drying and powder storage

Summary

Introduction

Cocona (Solanum sessiliflorum Dunal) is a fruit from Amazon, that is spread around several countries, including the Pacific coast of Colombia, Venezuela, Ecuador, Peru, and Brazil. Due to its phenolic compounds, carotenoid, pectin, citric acid, iron, and niacin (vitamin B5) content and its antioxidant capacity, cocona has a market potential because of the population current concern with a healthy diet (Cardona et al, 2011; Mascato et al, 2015; Rodrigues et al, 2013; Sereno et al, 2018; Silva et al, 2016) This fruit is recommended for people who have energy intake restrictions (Silva Filho et al, 2005) or high levels of cholesterol and triglycerides in their blood (Pardo, 2004; Yuyama et al, 2005). The use of a carrier agent of high molecular weight (HMW) is required (Can Karaca et al, 2016)

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