Utilization of Slaughterhouse Waste in Value-Added Applications: Recent Advances in the Development of Wood Adhesives

Adhikari, Birendra Babu; Chae, Michael; Bressler, David C.

doi:10.3390/polym10020176

Cited by 98 publications

(58 citation statements)

References 81 publications

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“…For example, slaughterhouse wastes are a good source of proteins from animal origin, like gelatin. These wastes comprise the inedible tissues/parts of the animals slaughtered for the production of meat [3]. Among the proteins from plant origin, soy protein isolate is a good option to develop new materials due to its composition and excellent processing ability by gelling, emulsifying ability and water and oil holding capacity [4].…”

Section: Introductionmentioning

confidence: 99%

Recent Trends in the Use of Pectin from Agro-Waste Residues as a Natural-Based Biopolymer for Food Packaging Applications

et al. 2020

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Regardless of the considerable progress in properties and versatility of synthetic polymers, their low biodegradability and lack of environmentally-friendly character remains a critical issue. Pectin is a natural-based polysaccharide contained in the cell walls of many plants allowing their growth and cell extension. This biopolymer can be extracted from plants and isolated as a bioplastic material with different applications, including food packaging. This review aims to present the latest research results regarding pectin, including the structure, different types, natural sources and potential use in several sectors, particularly in food packaging materials. Many researchers are currently working on a multitude of food and beverage industry applications related to pectin as well as combinations with other biopolymers to improve some key properties, such as antioxidant/antimicrobial performance and flexibility to obtain films. All these advances are covered in this review.

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Section: Introductionmentioning

confidence: 99%

Recent Trends in the Use of Pectin from Agro-Waste Residues as a Natural-Based Biopolymer for Food Packaging Applications

et al. 2020

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“…Additionally, the pellets made with starch had lower bulk density and durability [18]. Two recent reports have thoroughly reviewed the availability of proteinaceous feedstocks and various approaches of developing protein-based adhesives for bonding of cellulosic materials, uncovering the tremendous potential of this renewable resource for development of protein-based wood adhesives/binders [22,23]. In this perspective, proteinaceous material constitutes an attractive feedstock for the development of binders/additives for pelletization of torrefied wood.…”

Section: Introductionmentioning

confidence: 99%

Pelletization of Torrefied Wood Using a Proteinaceous Binder Developed from Hydrolyzed Specified Risk Materials

et al. 2019

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Pressing issues such as a growing energy demand and the need for energy diversification, emission reduction, and environmental protection serve as motivation for the utilization of biomass for production of sustainable fuels. However, use of biomass is currently limited due to its high moisture content, relatively low bulk and energy densities, and variability in shape and size, relative to fossil-based fuels such as coal. In recent years, a combination of thermochemical treatment (torrefaction) of biomass and subsequent pelletization has resulted in a renewable fuel that can potentially substitute for coal. However, production of torrefied wood pellets that satisfy fuel quality standards and other logistical requirements typically requires the use of an external binder. Here, we describe the development of a renewable binder from proteinaceous material recovered from specified risk materials (SRM), a negative-value byproduct from the rendering industry. Our binder was developed by co-reacting peptides recovered from hydrolyzed SRM with a polyamidoamine epichlorohydrin (PAE) resin, and then assessed through pelleting trials with a bench-scale continuous operating pelletizer. Torrefied wood pellets generated using peptides-PAE binder at 3% binder level satisfied ISO requirements for durability, higher heating value, and bulk density for TW2a type thermally-treated wood pellets. This proof-of-concept work demonstrates the potential of using an SRM-derived binder to improve the durability of torrefied wood pellets.

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“…Table 5. Plasma concentrations variables associated with the immune response of laying hens fed diets supplemented with different percentages of purified amino acid (PAA) of blood are generated in abattoirs each year which can be used in animal feed to boost its protein or amino acid content (Adhikari, 2018). The purified amino acids (PAA) used in the present study were prepared from the blood generated in a slaughterhouse.…”

Section: Discussionmentioning

confidence: 99%

Effects of Supplementing Laying Hens with Purified Amino Acid Prepared from Animal Blood

Joshi

Wandita

Yang

et al. 2019

Trop. Anim. Sci. J.

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The objective of the experiment was to investigate the effects of supplementing laying hens with purified amino acids (PAA) derived from the blood of animal slaughter house on their egg production, egg quality, and immune response. The experiment was based on completely randomized design. A total of 144 Isa Brown laying hens (56-weeks old) were randomly allotted to 4 treatments with 4 pen replications (control, T1: 0.05%, T2: 0.1%, and T3: 0.5% PAA). Each pen housed nine laying hens. The laying hens were reared under a deep litter system. Once a week, a total of 12 eggs of each treatment were collected for egg quality analysis. At the end of the experiment, blood samples were collected for biochemical analysis and cytokines profiles using ELISA kit assays. Hen day egg production and hen house egg production increased significantly (P<0.05) along with the increase in PAA supplementation. The average egg weight increased significantly (P<0.05) with PAA supplementation. Significant differences (P<0.05) were also found in egg shell strength, shell thickness, and albumen ratio. Blood biochemical variables, such as glucose, total cholesterol, blood urea nitrogen (BUN), total bilirubin, and glutamate oxalate transaminase (GOT) were within the normal range. However, the glucose was highest in the control group. Whereas, the total cholesterol and total bilirubin were highest in T2 as compared to control group. Plasma immunoglobulin A (IgA) and immunoglobulin G (IgG), interleukin-1 (IL-1), interleukin-2 (IL-2) concentrations were not affected by PAA supplementation. Plasma interferon gamma (IFNγ) of PAA supplemented treatment groups was significantly (P<0.05) lower than the control group. However, tumor necrosis factor alpha (TNFα) was significantly (P<0.05) higher in T2. On the basis of these results, we conclude that PAA supplementation improved the production performance of laying hens without affecting their health.

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Utilization of Slaughterhouse Waste in Value-Added Applications: Recent Advances in the Development of Wood Adhesives

Cited by 98 publications

References 81 publications

Recent Trends in the Use of Pectin from Agro-Waste Residues as a Natural-Based Biopolymer for Food Packaging Applications

Recent Trends in the Use of Pectin from Agro-Waste Residues as a Natural-Based Biopolymer for Food Packaging Applications

Pelletization of Torrefied Wood Using a Proteinaceous Binder Developed from Hydrolyzed Specified Risk Materials

Effects of Supplementing Laying Hens with Purified Amino Acid Prepared from Animal Blood

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