Pigskin Treatment Using Different Food-Grade-Acids: Effects on The Physicochemical Characteristics of The By-Products
<p>Upcycling foods contribute to reducing food loss and waste and provide sustainable solutions to novel products. In the present work, it was studied the use of food-grade acids (Acetic(AH), Latic(AL), Citric(AC), and Ascorbic(AA) acid) to obtain pigskin by-products, acid soluble collagen (AS...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Department of Food Technology
2023-12-01
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| Series: | Food ScienTech Journal |
| Subjects: | |
| Online Access: | https://jurnal.untirta.ac.id/index.php/fsj/article/view/19939 |
| Summary: | <p>Upcycling foods contribute to reducing food loss and waste and provide sustainable solutions to novel products. In the present work, it was studied the use of food-grade acids (Acetic(AH), Latic(AL), Citric(AC), and Ascorbic(AA) acid) to obtain pigskin by-products, acid soluble collagen (ASC) and gelatin (G). The aim was to evaluate the effect of the use of different food-grade-acids on pigskin by-products characteristics. The physicochemical and thermal characteristics, including Hydroxiproline (Hyp), pH, Differential Scanning Calorimetry (DSC), and color were evaluated on by-products. The ASC and G solutions pH´s showed relation with the acid solution pH used. The AH and AA ASC fractions, showed lower Hyp content than AC and AL-treatments. By contrast, G Hyp-content was higher for AH and AA than AC and AL-treatments. The dried ASC-AH and -AA thermal transition temperatures (T<sub>d</sub>) resulted lower than AL and AC T<sub>d</sub>. The four dried-G samples showed an endothermic signal around 120 °C but with differences on enthalpy values. Current results suggest that the acid used and the pH of the solution during the thermal process would affect the physical-chemical properties of the by-products. The possibility to obtain different pigskin by-products using food grade acid could be an option for obtaining novel ASC and G use. Independently of the treatment, the G by-product was the main yield. Likewise, further studies are required to understand the by-products chemical differences and their potential uses.</p> |
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| ISSN: | 2685-4279 2715-422X |