Zhang Qian , Wenzhong Huang

Biomass Research Center, Hainan Institute of Tropical Agricultural Resouces, Sanya, 572025, Hainan, China
Author    Correspondence author
Journal of Energy Bioscience, 2025, Vol. 16, No. 4   
Received: 22 May, 2025    Accepted: 30 Jun., 2025    Published: 11 Jul., 2025

This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

This study mainly talks about how sweet potatoes are used as energy in rural China, especially for biogas production. In addition to being a common food and industrial raw material, sweet potatoes can actually be used as energy crops. Studies have found that different varieties of sweet potatoes vary greatly in their gas production and methane production capabilities. Some varieties, such as Laranjeiras and BRS Cuia, can produce more biogas, which shows that sweet potatoes are still reliable as energy. In southern China, people can rotate sweet potatoes with corn. This method can bring energy benefits, economic benefits and environmental benefits at the same time. In this way, you can increase net energy output, make more money, and reduce greenhouse gas emissions. If sweet potatoes are fermented with animal manure, more biogas will be produced, which is more cost-effective. This is very helpful for the development of a circular economy in rural areas. If the sweet potato waste is treated with heat treatment before fermentation, it can also produce a lot more gas. This also makes the fermentation process faster and shorter. As an energy crop in rural areas, sweet potatoes not only allow farmers to use their own energy, reduce damage to the environment, but also increase income. For promoting sustainable development in rural China, sweet potatoes are a promising choice.

Sweet potato; Energy crops; Biogas; Rural sustainable development; China