{"title":"Microwave Processing of Food and Biological Materials","authors":"Markos Makiso Urugo, Shimelis Admassu Emire, Tadele Tuba Tringo","doi":"10.17508/cjfst.2021.13.2.09","DOIUrl":"https://doi.org/10.17508/cjfst.2021.13.2.09","url":null,"abstract":"Microwave processing is one of the novel food processing technologies that \u0000use electromagnetic radiation in the wavelength and frequency between 1 mm \u0000to 1 m and 300 MHz to 300 GHz, respectively. In this review, principles and \u0000various applications of microwave technology for food processing are \u0000addressed. A systematic literature search was conducted by using, Google \u0000Scholar and, Web of Science, Open access theses and dissertations on the \u0000principles and application of microwave processing of food were summarized. \u0000Additionally, references of each selected publication were examined to get \u0000more relevant articles. In microwave processing, the food material absorbs \u0000microwave energy directly, and internally, and converts it to heat. The \u0000technology is applicable for different unit operations in food industries such as \u0000cooking, heating, drying, pasteurization, sterilization, thawing, tempering, \u0000baking, blanching, and the extraction of important food biomaterials. \u0000Microwave processing is highly advantageous over conventional food \u0000processing techniques, in terms of retaining the nutritional content of the food \u0000and reducing processing time. Consequently, the breakthrough of the \u0000technology in food processing industry has been predicted before. However, \u0000the potential of microwave technology is not widely exhausted in Africa. It is \u0000associated with a lack of awareness, a priority setting on the application of \u0000emerging technologies for safe and high quality value added products; \u0000moreover, its high initial investment and operational power cost may become \u0000a bottleneck for food processing companies in Africa. Therefore, food \u0000innovation centres in Africa should drive high performance standards from \u0000technology adoption to improve the application of microwave technology in \u0000food industries.","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":"49249390","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":"Modelling and optimization of the drying process and the quality parameters of dried osmo-pretreated onions (Allium cepa)","authors":"K. Alabi, A. Olaniyan, M. O. Sunmonu","doi":"10.17508/cjfst.2021.13.2.07","DOIUrl":"https://doi.org/10.17508/cjfst.2021.13.2.07","url":null,"abstract":"Modelling and optimization represent an important aspect of drying in food \u0000processing, providing a fast and convenient means for quality prediction. The \u0000research focuses on modelling and optimization of process parameters such as \u0000drying rate, water loss, solid gain, vitamin C, manganese, and iron of dried \u0000osmo-pretreated onion slices. Least square regression analysis in the Math-lab \u0000computer software was used to model and optimise the process parameters., \u0000Six (6) mathematical models were developed for each output from the \u0000regression analysis that was carried out. The criteria for adjudging these models \u0000were the values of their adjusted coefficient of multiple determinations, \u0000prediction error sum of squares (also called deleted residual), R2 for prediction, \u0000coefficient of variation CV, and the Dubin-Watson test for autocorrelation. The \u0000models were checked for adequacy using these criteria, and those found to be \u0000adequate were selected from among the other possible combinations. Hence, \u0000the best-optimized obtained results from the models are 27.50 g/h, 1.61 g/g, \u00000.15 g/g, 77.52 mg/100 g, 2.79 mg/1000 g, and 2.19 mg/1000 g for drying rate, \u0000water loss, solid gain, vitamin C, manganese, and iron, respectively.","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":"49342408","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}
Oluwatomilola Bolaji, Damilola Bamidele, A. Adeboye, A. Tanimola
{"title":"Influence of Preparation and Processing Methods on the Physico-chemical Properties \u0000of Oryctes rhinoceros Larvae","authors":"Oluwatomilola Bolaji, Damilola Bamidele, A. Adeboye, A. Tanimola","doi":"10.17508/cjfst.2021.13.2.02","DOIUrl":"https://doi.org/10.17508/cjfst.2021.13.2.02","url":null,"abstract":"The growing world population with increasingly demanding consumers has led \u0000to considering insects as part of are normal diet since they are good sources of \u0000proteins, and could therefore potentially contribute to global food security. This \u0000study produced Oryctes rhinoceros L. larvae powder and investigated the \u0000impact of preparation and processing methods (degutted; roasted and dried) on \u0000some quality parameters of O. rhinoceros larvae powder. Each batch was \u0000prepared with and without their gut respectively. Physico-chemical analyses \u0000were determined on the powder, while sensory evaluation was carried out on \u0000the whole O. rhinoceros larvae using standard procedures. Moisture content of \u0000the powders ranged from 3.57 - 5.66%, protein content (51.60 - 62.65%), fat \u0000(8.71 – 12.67%), ash (3.97 - 10.25%), fibre (15.57 - 19.52%) and carbohydrate \u0000(0.12 - 6.56%). The results of functional properties revealed a range of 2.64 – \u00002.98 mg/g for water absorption capacity, oil absorption capacity of 2.43- 2.70 \u0000mg/g and bulk density of 0.48 – 0.51 g/mL. Processing (roasting and oven \u0000drying) had no significant effect on the sensory and physico-chemical \u0000properties of whole O. rhinoceros larvae and O. rhinoceros larvae powder, \u0000while the removal of the gut significantly contributed to the improvement of \u0000the quality and sensory appeal of O. rhinoceros larvae.","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":"47412437","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}