Bopape Lesibana, Satekge Thabiso, Mafeo Paulus, Lekganyane Manape
Department of Plant Production, Soil Science and Agricultural Engineering, School of Agricultural and Environmental Sciences, University of Limpopo, Turfloop, South Africa.
Department of Biochemistry, Microbiology and Biotechnology, School of Molecular and Life Sciences, University of Limpopo, Turfloop, South Africa.
Heliyon. 2024 Sep 18;10(18):e38055. doi: 10.1016/j.heliyon.2024.e38055. eCollection 2024 Sep 30.
In many countries, potato () is a crucial carbohydrate-rich crop and staple food. However, sprouting during storage can adversely affect the quality of the harvested tubers. To maintain the postharvest quality, this study assessed the potential of apple fruit as one of the biological suppressants for potato tuber sprouting at ambient storage. Potato tubers were obtained from four commercial farms. Thereafter, they were stored in a brown paper alone (control) or with apple fruit at ±23 °C for 30-day period. Potato tubers were evaluated for their weight loss, sprouting percentage, decay and soluble sugars during storage duration. Tubers stored with apple fruit had significantly (P < 0.05) reduced physiological weight loss after 30-day storage compared to the control. The results indicated that sprouting was significantly lower on tubers stored with fruit compared to the control. Sucrose, glucose and fructose increased in tubers stored with apple fruit compared to the control, especially in tubers obtained from Jamba and Leeubult. Tubers stored with apple fruit decayed significantly compared to the control in tubers from Jamba and Leeubult. Furthermore, dry matter and starch content were significantly lower tubers stored with apples compared to the control. In conclusion, apple fruit could serve as an effective sprout suppressant for potatoes at ambient storage. Therefore, apple fruit can be adopted as an alternative sprout suppressant to synthetic ethylene gas and various chemicals such as Chloropropham.
在许多国家，马铃薯是一种重要的富含碳水化合物的作物和主食。然而，储存期间发芽会对收获的块茎质量产生不利影响。为了保持采后品质，本研究评估了苹果果实作为常温储存下马铃薯块茎发芽生物抑制剂之一的潜力。马铃薯块茎取自四个商业农场。此后，将它们单独用牛皮纸包装（对照）或与苹果果实一起在±23°C下储存30天。在储存期间，对马铃薯块茎的重量损失、发芽率、腐烂情况和可溶性糖进行评估。与对照相比，与苹果果实一起储存的块茎在储存30天后生理重量损失显著降低（P<0.05）。结果表明，与对照相比，与果实一起储存的块茎发芽率显著更低。与对照相比，与苹果果实一起储存的块茎中蔗糖、葡萄糖和果糖增加，尤其是从Jamba和Leeubult获得的块茎。与对照相比，来自Jamba和Leeubult的块茎中与苹果果实一起储存的块茎腐烂显著。此外，与对照相比，与苹果一起储存的块茎干物质和淀粉含量显著更低。总之，苹果果实可作为常温储存下马铃薯的有效发芽抑制剂。因此，苹果果实可作为合成乙烯气体和多种化学物质（如氯苯胺灵）的替代发芽抑制剂。
