Film preparation with high protein defatted peanut flour: characterisation and potential use as food packaging

Abstract

Summary The purpose of this study was to prepare a defatted peanut flour‐based film (DPFF); to characterise their physicochemical, optical, barrier and mechanical properties; and to evaluate the defatted peanut flour package efficacy to preserve the chemical quality of sunflower oil during storage. The film presented high lightness values (L* = 86.83). The water vapour permeability was 5.44 × 10−11 g m−1 s−1 Pa−1. Tensile strength and percentage of elongation were 1.01 MPa and 84.01%, respectively. Sunflower oil samples packaged in defatted peanut flour packages (DPFP) were stored during 67 days at room temperature. Peroxide value and conjugated dienes increased less for sunflower oil conditioned in DPFP and high barrier plastic pouches (EVOH) during storage than sunflower oil conditioned in Petri dishes (C). The use of DPFP improved the chemical stability of sunflower oil during storage. The DPFF showed suitable film properties, and also, the capacity to be incorporated in food packaging applications.

A Natural Peanut Edible Coating Enhances the Chemical and Sensory Stability of Roasted Peanuts

“…The high‐protein content in the coating material was responsible for improving the coated peanut preservation (Grosso, Asensio, Nepote, & Grosso, , ). The method of DPF production led to a protein and carbohydrate content of 53.22g/100 g and 23.90 g/100 g, respectively (Riveros et al., ). As a result of the extraction process used, proteins and carbohydrates are the major components of the DPF (Riveros et al., ).…”

“…Some earlier investigations indicated the oxygen and water barrier properties of protein and carbohydrate‐based edible films for food application (Chinma, Ariahu, & Abu, ; Li et al., ). The defatted process used to prepare DPF achieves a significant reduction in the fat content of DPF (4.06 g/100 g; Riveros et al., ) relative to raw peanuts (49.24 g/100 g; USDA, ). Noshirvani, Ghanbarzadeh, Mokarram, and Hashemi () indicated the beneficial effects of lipids on the hydrophobicity of coatings prepared from carboxymethyl cellulose, such as reducing the water vapor permeability by the addition of oleic acid.…”

“…The current research followed the same procedure for DPF film‐forming solution preparation developed by Riveros et al. (). Those authors characterized DPF‐based films (DPFF) and evaluated the ability of DPF packaging to preserve the chemical quality of sunflower oil during storage.…”

“…DPF was prepared according to the method of Riveros, Martin, Aguirre, and Grosso (2018). Blanched peanut kernels were firstly grounded using a mill (Moulinex, model AD5663C9, Colombia) and then defatted using n-hexane for 12 hr in a Soxhlet apparatus.…”

Synthesis of a novel polyphosphazene/triazine bi‐group flame retardant in situ doping nano zinc oxide and its application in poly (lactic acid) resin

“…Nowadays, some researchers find that microplastic particles even exist in people's daily drinking water. Therefore, the researchers gradually use biodegradable polymer materials to replace common polymer materials for reducing environmental pollution …”