{"title":"Bacterial Cellulose Production in The Overripe Guava Juice by Acetobacter xylinum as A Solution to Reduce Organic Waste","authors":"A. N. Lathifah, I. Nuryana","doi":"10.14203/inajac.v23i2.493","DOIUrl":null,"url":null,"abstract":"The exploration for a new cost-effective carbon source with shorter fermentation process for high yield BC production is still needed. In this study, bacterial cellulose (BC) was synthesized by Acetobacter xylinum using overripe guava juice as a carbon source. The results showed that A. xylinum was able to grow on the overripe guava juice with different concentration and produced BC after two days incubation. In the later on, the BC is called as nata de guava. The overripe guava juice which containing reducing sugar content 23 g /L (substrate 100%) at pH 4 produced the thickest BC (1.267 cm). This study showed due to the high reducing sugar and protein contents in the overripe guava, without the addition of carbon and nitrogen from external sources, BC could be formed. Considering the huge disposal overripe guava fruit waste in Java, the present study provides an alternative methodology to synthesize BC. Besides, most importantly, this study provides a new insight to manage organic waste specifically from overripe guava fruit rather than the waste being thrown away and becoming organic waste generation. Keywords: bacterial cellulose, Acetobacter xylinum, overripe guava, organic waste","PeriodicalId":17694,"journal":{"name":"Jurnal Kimia Terapan Indonesia","volume":"41 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2021-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Jurnal Kimia Terapan Indonesia","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.14203/inajac.v23i2.493","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
The exploration for a new cost-effective carbon source with shorter fermentation process for high yield BC production is still needed. In this study, bacterial cellulose (BC) was synthesized by Acetobacter xylinum using overripe guava juice as a carbon source. The results showed that A. xylinum was able to grow on the overripe guava juice with different concentration and produced BC after two days incubation. In the later on, the BC is called as nata de guava. The overripe guava juice which containing reducing sugar content 23 g /L (substrate 100%) at pH 4 produced the thickest BC (1.267 cm). This study showed due to the high reducing sugar and protein contents in the overripe guava, without the addition of carbon and nitrogen from external sources, BC could be formed. Considering the huge disposal overripe guava fruit waste in Java, the present study provides an alternative methodology to synthesize BC. Besides, most importantly, this study provides a new insight to manage organic waste specifically from overripe guava fruit rather than the waste being thrown away and becoming organic waste generation. Keywords: bacterial cellulose, Acetobacter xylinum, overripe guava, organic waste
探索一种新的低成本的、发酵过程短的碳源以生产高产BC仍是需要的。本研究以过熟番石榴汁为碳源,利用木醋杆菌合成细菌纤维素(BC)。结果表明,木霉在不同浓度的过熟番石榴汁上均能生长,培养2天后产生BC。在后来,BC被称为nata de guava。pH值为4时,过熟番石榴汁中还原糖含量为23 g /L(底物为100%),其BC最厚,为1.267 cm。本研究表明,由于过熟番石榴中还原糖和蛋白质含量较高,无需外源碳和氮的添加,也能形成BC。考虑到爪哇地区废弃的大量过熟番石榴果,本研究为合成BC提供了一种新的方法。此外,最重要的是,本研究为处理过熟番石榴的有机废物提供了新的思路,而不是将其丢弃成为有机废物。关键词:细菌纤维素,木醋杆菌,过熟番石榴,有机废物