Optimized Extraction and Characterization of Sesame Seed Press Cake Protein and its Application in the Formulation of Meatball Analog

IF 2.8 4区 农林科学 Q2 FOOD SCIENCE & TECHNOLOGY
Muhammad Farhan, Syed Farhat Ali, Muhammad Bilal Sadiq
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引用次数: 0

Abstract

In this study, extraction of protein from sesame seed press cake (SSPC) was optimized. SSPC protein isolate was subjected to enzymatic hydrolysis and both SSPC protein isolate and hydrolysates were characterized by SDS-PAGE, gel filtration chromatography, Fourier transformed infrared spectroscopy (FTIR) and circular dichroism (CD) spectroscopy. Meatball analogs containing SSPC protein isolate (15 and 20%) were prepared and evaluated for sensory attributes. The extraction at optimized conditions resulted in protein yield of 20.87 ± 0.57% with protein content of 92.1 ± 1.82%. Water holding capacity (WHC) and oil holding capacity (OHC) of SSPC protein isolate were 1.47 ± 0.04 g/g and 5.86 ± 0.10 g/g, respectively. Densitometric analysis showed that 7S globulins (55–60 kDa) were the major protein bands in SSPC protein isolate and this finding was further supported by gel filtration chromatography. CD spectroscopy revealed that SSPC protein isolate contained 23.4% α-helical structure which after hydrolysis was reduced to 12.6%. FTIR analysis revealed the presence of Amide, I, II and III in protein isolate and hydrolysates. The incorporation of SSPC protein isolate resulted in a decrease in fat content whereas, the protein content of meatball analog was increased up to 42.43% in comparison to control formulation (22.68%). The meatball analogs received acceptable sensory scores and the addition of SSPC protein had no overall negative impact on the sensory scores. SSPC protein due to its low cost and functional attributes can be used in the formulation of meatball analogs.

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来源期刊
Food Biophysics
Food Biophysics 工程技术-食品科技
CiteScore
5.80
自引率
3.30%
发文量
58
审稿时长
1 months
期刊介绍: Biophysical studies of foods and agricultural products involve research at the interface of chemistry, biology, and engineering, as well as the new interdisciplinary areas of materials science and nanotechnology. Such studies include but are certainly not limited to research in the following areas: the structure of food molecules, biopolymers, and biomaterials on the molecular, microscopic, and mesoscopic scales; the molecular basis of structure generation and maintenance in specific foods, feeds, food processing operations, and agricultural products; the mechanisms of microbial growth, death and antimicrobial action; structure/function relationships in food and agricultural biopolymers; novel biophysical techniques (spectroscopic, microscopic, thermal, rheological, etc.) for structural and dynamical characterization of food and agricultural materials and products; the properties of amorphous biomaterials and their influence on chemical reaction rate, microbial growth, or sensory properties; and molecular mechanisms of taste and smell. A hallmark of such research is a dependence on various methods of instrumental analysis that provide information on the molecular level, on various physical and chemical theories used to understand the interrelations among biological molecules, and an attempt to relate macroscopic chemical and physical properties and biological functions to the molecular structure and microscopic organization of the biological material.
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