Reasonable ingredients and techniques were established for the mix jam from some tropical fruits such as banana,papaw,mango.

• 利用非洲布隆迪盛产的香蕉,配合木瓜、芒果等其它热带水果,经科学试验,制定了合理的配方和制作工艺,开发出受欢迎的果酱产品。