Optimization of Cellulosic Fiber Extraction from Parsley Stalks and Utilization as Filler in Composite Biobased Films

Abstract

Food waste is an abundant source of cellulose which can be extracted via mild alkali treatment. The extraction conditions of cellulose fibers can be optimized for reduced chemical and energy use and optimal functionality. This study focused on the optimization of alkali extraction of lignocellulosic fiber from parsley stalks by building an experimental design with the response surface method with alkali concentration (2, 6, and 10%, w/v), fiber:alkali ratio (0.02, 0.035, and 0.05; w/v) and extraction temperature (40, 70, and 100 °C) as independent variables, in order to evaluate the effects of extraction conditions on fiber yield and composition of parsley stalks extract (PSE). Following the optimization, PSE and untreated fibers (PF) were incorporated as filler into gum Arabic–sodium alginate-based films, and film properties such as water vapor permeability, optical and thermal properties, Fourier transform infrared spectra and surface morphology of the films were analyzed for evaluating the compatibility of these fillers with the composite film matrix. The optimal extraction conditions were determined as 2% alkali, sample:alkali ratio of 0.0276 and extraction temperature of 40 °C. PSE extracted at optimal conditions was added to the composite films, and water vapor permeability and optical properties were improved by up to 10% PSE compared to films with PF.

Development of tissue-engineered vascular grafts from decellularized parsley stems

“…Similar to the majority of the other plants, the ECM of the parsley stems is mainly composed of cellulose, hemicellulose, and lignin. 89 The cellulose-based biomaterials have been shown to be a good candidate for tissue engineering applications as cellulose is a natural polysaccharide that is hydrophilic, biodegradable in nature, and biocompatible. 48 Because cellulose is a fibrous homopolymer where D-glucose units are linked together with b-(1-4)-glycosidic linkages, 90,91 it has high crystallinity, low solubility, and poor biodegradation rate in vivo.…”

A Review on Barrier Properties of Cellulose/Clay Nanocomposite Polymers for Packaging Applications

“…Petroleum-based synthetic polymers have become a significant environmental concern, as their levels continue to rise in seas, causing pollution, and they continue to deplete landfill space [ 4 , 5 ]. The development of new bio-based materials with biodegradability, renewability, biocompatibility, and sustainability has increased in demand in recent years [ 6 , 7 , 8 ].…”

Fruit Juice Industry’s Transition Towards Sustainability from the Viewpoint of the Producers

“…These phytochemicals can be utilized by the food industry for the development of functional or enriched foods and the health industry, among others [32]. For instance, by-products such as apple pomace and grape pomace contain significant amounts of dietary fibre (pectin, hemicelluloses and cellulose) that can be upcycled for healthy food or feed [33,34]. In citrus, the waste produced reaches 50-59% of the whole fruit weight (30-34% peel and 20-25% seeds) [35], and, in the case of apple juice production, the waste can be 10-30% of the fruit weight [36].…”