Papers by Keyword: PEELS

Abstract: The increasing demand for alternative water treatment methods has led to growing interest in natural coagulants for purifying surface water particularly in low-resource communities. In this study, the coagulation performance of orange (Citrus sinensis) seeds and peels as natural alternatives to alum for surface water treatment was investigated. Coagulant dosages ranging from 2–10 g/L were evaluated for their effectiveness in reducing turbidity, total suspended solids (TSS), total dissolved solids (TDS), chemical oxygen demand (COD) and biological oxygen demand (BOD). The results showed that orange seeds achieved maximum reductions of 73.6% turbidity, 61.7% TSS, 36.2% TDS, 65.5% COD and 48.3% BOD at an optimal dosage of 8 g/L, outperforming orange peels across all parameters. In comparison, alum at 2 g/L demonstrated higher treatment efficiency, with turbidity, COD and BOD reductions of 81.5%, 69.7%, and 55.6%, respectively. While reductions in turbidity and organic matter were substantial, TDS removal was limited thus suggesting the need for additional treatment stages to meet WHO drinking water standards. These findings suggest that orange seeds and peels are promising alternatives to conventional coagulants for surface water treatment and supports the application of natural and biodegradable alternatives for water treatment practices.

Abstract: Proteomic investigation of leaves, peels and seeds on longan (Dimocarpus longan Lour. cv. Daw) at Maejo University’s farm in Chiang Mai province, Thailand. There were comparisons between normal and physiological disorder syndromes in longan on fruit growth (5, 10, 15, 20, 25 and 30 weeks fruition, respectively) by one dimensional electrophoresis (1-D gel) technique at a concentration of 12.5% gel in reducing condition with Coomassie brilliant blue R-250 staining coupling on liquid chromatography tandem mass spectrometry (LC-MS/MS). The research showed that vegetative storage protein (25.2 KDa), a storage protein in plants, was expressed in leaves, peels and seeds on before and after physiological disorder syndrome occurring. A protein involved on photosynthesis, the ribulose-1,5-bisphosphate carboxylase/oxygenase (48.3 KDa), was represented only on leaves at 30 weeks after fruition but not in peels and seeds of longan. Two proteins, the BnaC01g20210 (35.8 KDa) and predicted protein (40.11 KDa), which could not be identified the type and function of the metabolism, were decreased in diseased longan. These proteins may be important protein in part of the recovery process of abnormal longan. Therefore, advanced technique will be used for further proteomic studies.