Oludare Michael Ogunyemi, G. Gyebi, Raheemat Shaibu, Mercy M Fabusiwa, C. Olaiya
{"title":"Antioxidant, Nutritional, and Physicochemical Quality of Yoghurt Produced from a Milk-Based Fermentation Mix Enhanced with Food Spices","authors":"Oludare Michael Ogunyemi, G. Gyebi, Raheemat Shaibu, Mercy M Fabusiwa, C. Olaiya","doi":"10.17508/cjfst.2021.13.2.10","DOIUrl":"https://doi.org/10.17508/cjfst.2021.13.2.10","url":null,"abstract":"Utilization of natural additives, which could meet the growing need for ‘clean \u0000label’ and value addition with respect to disease prevention and health \u0000promotion in humans, is a current interest in the yoghurt industry. In this study, \u0000yoghurt recipes derived from a standard milk-based fermentation mix \u0000enhanced with African black pepper (ABP), turmeric, or cloves extracts were \u0000evaluated for antioxidant, nutritional and physicochemical qualities. Each \u0000fermentation mix was pasteurized, inoculated with 0.5% industrial starter \u0000culture containing Streptococcus thermophillus and Lactobacillus delbrueckii \u0000subsp. bulgaricus (1:1), and then allowed to ferment in a fermentation tank for \u00009 hours at 40 °C. The results revealed that the clove-enriched yoghurt recipe \u0000exhibits the strongest antioxidant capacity, as indicated by a significant \u0000increase (p < 0.05) in total phenolics, total flavonoids, total antioxidant capacity \u0000(TAC), DPPH radical scavenging activity, nitric oxide radical scavenging \u0000activity, ferric ion reducing power (FRAP), and inhibition of lipid peroxidation, \u0000but it also exhibits reduced apparent viscosity and organoleptic properties. \u0000Similarly, ABP increased the antioxidant characteristics, with increased protein \u0000content and gel viscosity. Turmeric extracts significantly increased (p < 0.05) \u0000the calcium content and reduced syneresis. In conclusion, the fermentation of \u0000a milk-based mix containing ABP extract resulted in yoghurt which combines \u0000improved antioxidant characteristics with increased protein and enhanced \u0000techno-functionality.","PeriodicalId":10771,"journal":{"name":"Croatian journal of food science and technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42644690","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Various techniques for phenolic removal from olive mill wastewater","authors":"Melita Lončarić, M. Habuda-Stanić, M. Molnar","doi":"10.17508/cjfst.2021.13.2.15","DOIUrl":"https://doi.org/10.17508/cjfst.2021.13.2.15","url":null,"abstract":"As the world's population increases, so does the amount of wastewater \u0000generated during agricultural activities. Inadequate wastewater management \u0000can be the cause of sea and river pollution. However, wastewater can be a \u0000potential source of biologically active components that can be obtained via \u0000physicochemical, biological, thermochemical or combined treatments. Olive \u0000mill wastewater is produced in huge quantities around the world during the \u0000production of olive oil. This waste is harmful to the ecological system due to \u0000the high content of phenolic components that can be recovered by different \u0000methods whereby this waste also gains economic value. This review describes \u0000several methods that can be used in phenol removal or isolation from olive mill \u0000wastewater.","PeriodicalId":10771,"journal":{"name":"Croatian journal of food science and technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46245737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. O. Abioye, A. Adekunle, Olorunfemi Adebisi Jeremiah, I. Bazambo, O. B. Adetoro, Khafayat Oluwadamilola Mustapha, Chioma FavourOnyeka, Thomas Adedayo Ayorinde
{"title":"Modelling the influence of hot air on the drying kinetics of turmeric slices","authors":"A. O. Abioye, A. Adekunle, Olorunfemi Adebisi Jeremiah, I. Bazambo, O. B. Adetoro, Khafayat Oluwadamilola Mustapha, Chioma FavourOnyeka, Thomas Adedayo Ayorinde","doi":"10.17508/cjfst.2021.13.2.05","DOIUrl":"https://doi.org/10.17508/cjfst.2021.13.2.05","url":null,"abstract":"The influence of different drying temperatures and slice thicknesses on the \u0000drying kinetics of turmeric slices was studied to show how moisture is \u0000removed. The best model for predicting the drying kinetics was also \u0000determined. Turmeric slices (3 mm, 5 mm, and 7 mm) were dried at 40, 50, \u0000and 60 °C in a laboratory oven dryer. Four thin layer drying models (Newton, \u0000Henderson and Pabis, Logarithmic, and Page) were fitted to the experimental \u0000data and the selection was done based on the model with the highest correlation coefficient (R2), and lowest reduced chi-square (χ2), the sum of square error \u0000(SSE), and root mean square error (RMSE). Drying time varied between 420 \u0000min and 1140 min as the air temperature increased from 40 °C to 60 °C. The \u0000effective moisture diffusivity coefficient increased with increasing drying \u0000temperature and was found to be between 1.35×10-10 m2/s, and 5.00×10-10 m2/s, \u00003.00×10-10 m2/s and 10.91×10-10 m2/s, and 4.56×10-10 m2/s and 13.00×10-10 m2/s at 40 °C, 50 °C, and 60 °C, respectively. The values obtained for the activation \u0000energy for moisture diffusion were found to be 56.809, 56.060, and 45.561 \u0000kJ/mol for 3, 5, and 7 mm, respectively. The page model was found to best \u0000describe the oven drying of turmeric slices.","PeriodicalId":10771,"journal":{"name":"Croatian journal of food science and technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48979110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Daniela Amidžić Klarić, Ilija Klarić, A. Mornar, D. Velić, Natalija Velić
{"title":"Polyphenolic content, antioxidant activity and metal composition of traditional \u0000blackberry products","authors":"Daniela Amidžić Klarić, Ilija Klarić, A. Mornar, D. Velić, Natalija Velić","doi":"10.17508/cjfst.2021.13.2.14","DOIUrl":"https://doi.org/10.17508/cjfst.2021.13.2.14","url":null,"abstract":"In this study, commercially available traditional blackberry products, namely \u0000blackberry wines and blackberry elixirs from Coastal Croatia and Bosnia and \u0000Herzegovina, were investigated as sources of bioactive compounds, essential \u0000nutrients and metals. Samples were analysed for pH, total polyphenols and \u0000monomeric anthocyanins content, individual phenolic acids (gallic acid, \u0000chlorogenic acid, caffeic acid and p-coumaric acid), antioxidant activity \u0000(DPPH and ABTS), reducing power (RPA), total nitrogen and phosphorus as \u0000well as metals (K, Na, Ca, Mg, Fe, Mn, Cu, Zn, Co, Cr, Cd). The results of this \u0000study showed that the studied traditional blackberry products are rich sources \u0000of polyphenols and their consumption could increase the daily intake of dietary \u0000antioxidants in humans. In addition, both groups of traditional blackberry \u0000products could be considered safe for health and good additional sources of \u0000essential minerals such as manganese and potassium. The concentrations of the \u0000analysed undesirable toxic and potentially toxic metals in the studied \u0000blackberry products were below the maximum allowable concentrations \u0000defined by various regulations for wines and fruit wines.","PeriodicalId":10771,"journal":{"name":"Croatian journal of food science and technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48794123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}