Food ResearchPub Date : 2024-03-03DOI: 10.26656/fr.2017.8(s1).3
M.C. Nissa, M. Djaeni, P.R. Nabilla, S.B. Sasongko, C.L. Hii
{"title":"Performance evaluation of a rotary dryer for onion bulb drying","authors":"M.C. Nissa, M. Djaeni, P.R. Nabilla, S.B. Sasongko, C.L. Hii","doi":"10.26656/fr.2017.8(s1).3","DOIUrl":"https://doi.org/10.26656/fr.2017.8(s1).3","url":null,"abstract":"Drying is conducive in extending the storage life of fresh harvested onion. Currently,\u0000direct sun drying is not suitable in terms of fluctuating weather conditions. Rotary dryer\u0000assisted by combustion heating is a viable option to speed up onion drying process. In this\u0000case, 10 kg of fresh onion was placed in a rotary dryer operating for 2 hrs at 40°C and\u000014.6 m/s of air velocity. Moisture content was observed at every 30 mins and drying rate\u0000was predicted using several mathematical models. The drying temperatures were 50, 60,\u000070°C and the drying procedures were repeated. Results showed that the rotary dryer\u0000method can improve drying performance compared to the chamber and tray dryer methods\u0000and the drying rate of onion bulb drying can be well represented by the Page’s model with\u0000R\u00002\u0000value near to 1, and the lowest average chi-square (X2\u0000) of 0.00027.","PeriodicalId":502485,"journal":{"name":"Food Research","volume":"23 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140081077","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}
Food ResearchPub Date : 2024-03-03DOI: 10.26656/fr.2017.8(s1).4
L. Kurniasari, A.C. Kumoro, M. Djaeni
{"title":"Ultrasound assisted extraction of sappan wood (Caesalpinia sappan L.) using\u0000different solvents","authors":"L. Kurniasari, A.C. Kumoro, M. Djaeni","doi":"10.26656/fr.2017.8(s1).4","DOIUrl":"https://doi.org/10.26656/fr.2017.8(s1).4","url":null,"abstract":"Caesalpinia sappan L. or known as sappan wood is a plant that had been used in\u0000traditional food, beverages and traditional medicine. It contains many active\u0000phytochemicals compound such as brazilin, sappanchalcone, xanthone, coumarin and\u0000flavones. Extraction is the common method to get the active compounds in plants and the\u0000use of new method of extraction is very recommended. The research was aimed to analyze\u0000the effect of different solvent (ethanol, water and 2-propanol) to the characteristic of\u0000sappan wood extract obtained from ultrasound assisted extraction (UAE) process.\u0000Approximately 10 g of sappan wood was mixed with 100 ml solvent and extracted using\u0000probe type of ultrasound extractor for 15 mins and 500C. Extracts were analyzed for their\u0000yield, color, phytochemical compound, total phenolic content (TPC) and antioxidant\u0000activity. Ethanol gives the highest yield (6.125%) with the color tends to be between ruby\u0000red and traffic red. This result is in accordance with the calculation of Hansen solubility\u0000parameter (HSP). All of the three extracts contained saponin, tannin, flavonoid and\u0000triterpenoid. Ethanol also gives the highest TPC (254.14 mg GAE/100 g) and lowest IC50\u0000(3.19). It can be concluded that ethanol is better solvent to extract phytochemical\u0000component in sappan wood.","PeriodicalId":502485,"journal":{"name":"Food Research","volume":"7 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140081202","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}