Protein hydrolysates derived from aquaculture and marine byproducts through autolytic hydrolysis

Abstract

Autolysis technology has shown potential for protein hydrolysates production from marine and aquaculture byproducts. Viscera are a source of cheap proteolytic enzymes for producing protein hydrolysates from the whole fish or processing byproducts of the most valuable commercial species by applying autolysis technology. The use of autolysis allows economical production of protein hydrolysate and provides an opportunity to valorize downstream fish and shellfish processing byproducts at a lower cost. As a result, production and application of marine byproduct autolysates is increasing in the global protein hydrolysates market. Nevertheless, several restrictions occur with autolysis, including lipid and protein oxidation mediated by the heterogeneous composition of byproducts. The generally poor storage and handling of byproducts may increase the formation of undesirable metabolites during autolysis, which can be harmful. The formation of nitrogenous compounds (i.e., biogenic amines), loss of freshness, and process of autolysis in the byproducts could increase the rate of quality and safety loss and lead to more significant concern about the use of autolysates for human food applications. The current review focuses on the autolysis process, which is applied for the hydrolysis of aquaculture and marine discards to obtain peptides as functional or nutritive ingredients. It further addresses the latest findings on the mechanisms and factors contributing the deterioration of byproducts and possible ways to control oxidation and other food quality and safety issues in raw materials and protein hydrolysates.

Debittering of salmon frame protein hydrolysate and plastein using Maillard reaction as affected by types of sugar

“…a-Amino group content a-amino group content was measured as per the protocol outlined by Nikoo et al (2022). The sample (10 mg mL À1 ) was diluted five-fold using 0.2 M phosphate buffer (pH 8.2).…”

Packaging films based on biopolymers from seafood processing wastes: Preparation, properties, and their applications for shelf‐life extension of seafoods—A comprehensive review

“…Fish viscera, shrimp heads, and other offal comprising internal organs are another valuable SFBP. They contain lipids, proteins, and minerals that can be utilized to produce fish oil and fish protein hydrolysates (Nikoo et al., 2022). Fish oil from the head or liver (Baloch et al., 2023; Hu et al., 2022; Vázquez et al., 2022) and shrimp oils from cephalothorax or hepatopancreas (Pascual‐Silva et al., 2022; Raju & Benjakul, 2022) are rich in n − 3 fatty acids, known for their numerous health benefits and can be used as a nutritional supplement.…”

Relation of amino acid composition, hydrophobicity, and molecular weight with antidiabetic, antihypertensive, and antioxidant properties of mixtures of corn gluten and soy protein hydrolysates

“…Plant proteins have been widely considered as sustainable ingredients for the development of bioactive peptides and hydrolysates with antidiabetic, antihypertensive, and antioxidant activities (Das et al, 2022;Jin, Liu, et al, 2016). Enzymatic hydrolysis is a mild process that does not damage the amino acid composition compared with acidic hydrolysis, which could break down amino acids to toxic substances, such as 3-chloropropane-1,2-diol with carcinogenic effects (Adler-Nissen, 1979, 1984Lee & Khor, 2015;Nikoo et al, 2022;Wong et al, 2020). Thus, enzymatic hydrolysis is widely used in food industry as a controllable process for limited hydrolysis of proteins (Rezvankhah et al, 2021a(Rezvankhah et al, , 2021bRezvankhah, Yarmand, et al, 2022).…”