Citric acid: fermentative production using organic wastes as feedstocks

Author:

Aynalem Birhan1,Negi Himani2,Alemu Yigrem1,Sehrawat Nirmala3,Kumar Amit2

Affiliation:

1. Department of Biotechnology, Collage of Natural and Computational Sciences , Debre Markos University , Debre Markos , Ethiopia

2. Department of Biotechnology, School of Engineering and Technology , Sharda University , Greater Noida , India

3. Department of Biotechnology , MMEC, Maharishi Markandeshwar (Deemed to be University) , Mullana-Ambala , Haryana , India

Abstract

Abstract Citric acid is the most important organic acid produced in tonnage and is used extensively in the pharmaceutical, chemical and food industries due to its low cost and high efficiency compared to other acidulates. Citric acid is produced by fungi, bacteria and yeasts under solid-state and submerged state fermentations. Aspergillus niger is one of the most dominant producer of citric acid. Different fruit wastes and agricultural residues are employed as surplus resources for microbial production of citric acid. In this review, the microbial sources and different organic wastes involved in citric acid production have been discussed. Furthermore, the recovery, purification and application of citric acid in different human utilities have also been reviewed.

Publisher

Walter de Gruyter GmbH

Subject

General Physics and Astronomy,General Materials Science,General Chemistry

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