https://jallpa.allpi.int/index.php/jallpa <p>Journal of African Leather and Leather Products Advances (JALLPA) is a multidisciplinary peer-reviewed journal intended to promote the African leather sector in environmental friendly production, and marketing. JALLPA accepts manuscript in the following areas of study; Leather science, technology, product development, material science related to leather goods, footwear and garments, tannery waste management, green production, eco-labelling, leather sector business, management, Human Resource and administration. This include leather sector Marketing, information Technologies in Management, Intra and inter trade strategies, Entrepreneurship, Policy&amp;amp; Information Risk &amp;amp; Operations Management (IROM) and relevant areas of study to be approved by the editorial team.</p> <p>This journal provides immediate open access to its content on the principle that making research freely available to the public supports a greater global exchange of knowledge.</p> en-US abdelrahim@allpi.int (Dr. Abdel Rahim Ahmed) awlachews@allpi.int (Mr. Awlachew Sintie) Mon, 27 Feb 2023 06:35:07 -0500 OJS 3.3.0.10 http://blogs.law.harvard.edu/tech/rss 60 https://jallpa.allpi.int/index.php/jallpa/article/view/23 <p>Due to the high levels of pollution load produced in the leather industry, many studies are being conducted to replace most of the hazardous chemicals used. One of the options is to use enzymes which are biodegradable and considered environmentally friendly. Hides and skins contain many non-collagenous substances that require specific enzymes to remove. The aim of the study was to evaluate the effectiveness of different enzyme formulations in the unhairing process of goatskins. To achieve this, four types of enzymes were purchased from Jian Grace Industries which include amylase (100,000 U/g), protease (200,000 U/g), keratinase (200,000 U/g), and lipase (100,000 U/g). All possible combinations of one, two, three and four enzymes per formulation were prepared by mixing equal amounts per formulation. Parameters such as total solids, dissolved solids and protein content were determined on the affluent by standard procedures. In addition, the percentage weight gain, residual fat content and organoleptic test of the pelt were evaluated. Data were analysed using SPSS statistical packages version 21. ANOVA and t-test was used to test the level of significance (p≤ 0.05). Although several formulations gave complete unhairing, a formulation of keratinase, protease, and lipase (KPL) was selected as the best formulation. This formulation gave a completely unhaired pelt with a residual fat content of 6.4%. The organoleptic tests of all the unhaired pelts had a rating of 7-9. In conclusion, application of more than one enzyme can be a better option in removing non-collagenous components and in the replacement of the use of sodium sulphide in unhairing process.</p> Alex Kuria, Peter Gathura, Laetitia Kanja, Arthur Onyuka, Kipyegon Cheruiyot Copyright (c) 2023 Alex Kuria, Peter Gathura, Laetitia Kanja, Arthur Onyuka, Kipyegon Cheruiyot https://creativecommons.org/licenses/by-nc/4.0 https://jallpa.allpi.int/index.php/jallpa/article/view/23 Mon, 27 Feb 2023 00:00:00 -0500