Alsadig Yahya,Abdeen Elkhedir,Mamoun A. Homaida,Yassin Haran,Ikhlas Galal-Eldin,Yassin Taha,Ezzalden Saleh
Potatoes are an important food crop worldwide and are rich in essential nutrients. However, cooking can reduce their nutritional value and alter their texture. This study aimed to investigate the impact of pretreating potato slices with lemon juice. The slices were immersed in 5% lemon juice solution for 3 h, rinsed with distilled water for another 3 h, then cooked at 100°C for 20 min. Findings revealed that lemon juice pretreatment (LJP) notably improved the texture, mouthfeel, and overall acceptability of the cooked potato slices of different sizes (CPS-Ds). Additionally, LJP significantly increased vitamin C and total phenolic contents, slightly decreased pH levels, and preserved the desired color of CPS-Ds. Consumer sensory evaluations also indicated a positive response to LJP samples, suggesting its potential application in the food industry. The study confirmed that LJP is an effective, sustainable, consumer-friendly, and cost-efficient technique for improving the quality of cooked potato slices.
Solar-driven interfacial evaporation has great potential for seawater and wastewater purification treatment due to its high evaporation efficiency and environmental friendliness. However, salt deposition may occur during the actual desalination process, which can affect the performance and lifespan of the evaporator. In this study, a hydrogel (H) evaporator based on biomass material was developed, which encapsulated carbonized potato (CP) lamella into the sodium alginate (SA) framework (abbreviated as SA-H@CP). Due to the excellent solar energy collection ability of two-dimensional carbonized potato lamella, combined with the strong water transport capability of the hydrogel, the evaporator exhibited efficient photothermal conversion ability and super hydrophilic properties that resulted in excellent salt resistance. The SA-H@CP evaporator can achieve an evaporation rate of 1.36 kg m −2 h −1 , and an efficiency of 85 % in pure water under 1 sun illumination. The concentration of salt ions in the produced freshwater was much lower than the drinking water standard set by the World Health Organization (WHO). This work provides a solution for the large-scale promotion of solar-driven interfacial evaporation technology for seawater desalination.
危险品化学品经营许可证（带存储）