Bibliographic Details
Title: |
Production of Low Nucleic Acid Containing Single Cell Protein from Banana (Musa Spp.) Peels using the Yeast (Saccharomyces cerevisiae). |
Authors: |
Yakubu, Mohammed1 babaykb99@gmail.com, Laminu, Hauwa Hajjagana1, Milala, Mohammed Adamu1 |
Source: |
Systematic Reviews in Pharmacy. Jul/Aug2024, Vol. 15 Issue 7, p244-250. 7p. |
Subject Terms: |
*SINGLE cell proteins, *NUCLEIC acids, *SODIUM hydroxide, *FOOD consumption, *SACCHAROMYCES cerevisiae |
Abstract: |
A microbial protein termed as Single Cell Protein (SCP) is regarded as an alternative protein to complement the conventional proteins. As protein requirement is rising, high concentration of nucleic acid present in SCP serves as great limitation for its consumption as food. This study is aimed at producing SCP with reduced nucleic acids concentration from banana peels using Saccharomyces cerevisiae through submerged fermentation. The fermentation media was prepared as Non-supplemented Media (NM) (only processed peels hydrolysate with distilled water) and Supplemented Media (SM) (mineral salts with processed peels hydrolysate) after which, a high microbial growth and protein production (680 µg/µl) was observed on NM compared to 410 µg/µl that was obtained on SM after 120 hrs of fermentation. The products were further treated with 5%, 10% and 20% solution of each of Sodium Hydroxide (NaOH), Sodium Chloride (NaCl) and Glycine (Gly)-NaOH buffer at the pH of 10.3 to reduce the nucleic acids content. Treatment with NaCl showed high decrease in nucleic acid content (51.3 ng/µl-30.1 µg/µl) with corresponding greater decrease in protein content (410 µg/µl-190 µg/µl) at 20% treatment. However, treatment with Gly-NaOH buffer has reduced the protein quantity from 680 to 330 µg/µl (SM) and 410 to 250 µg/µl (SM) and decreased the nucleic acid content (47.9 to 23.3 µg/µl and 51.3 to 24.5 µg/µl on NM and SM respectively), while the protein and nucleic acid contents lost (680 to 110 µg/µl and 47.9 to 36.7 µg/µl) was observed on NaOH treatment. Amino Acids (AA) analysis indicated the presence of the 9 essential AA and 2 non-essential AA (cystine and tyrosine) in the product. The crystalized form of the product was also obtained through centrifugation at 4000 (revolutions per minute) rpm for 45 minutes. Therefore, NM banana peel hydrolysate proved to be good source of SCP with high protein content and more essential AA. The use of Gly-NaOH buffer in reducing the nucleic acid content of the SCP produced proved to be more effective, considering the less proteolytic effect they showed on the SCP produced. [ABSTRACT FROM AUTHOR] |
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Database: |
Academic Search Complete |