Real-time lipid production and dairy wastewater treatment using <i>Rhodococcus opacus</i> in a bioreactor under fed-batch, continuous and continuous cell recycling modes for potential biodiesel application

Gupta, Nikhil; Manikandan, N. Arul; Pakshirajan, Kannan

doi:10.1080/17597269.2017.1336347

Cited by 16 publications

(6 citation statements)

References 20 publications

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“…Meanwhile, with the addition of mineral salts as external substrate, the lipid content and the COD removal efficiency have increases up to 33% and 62%, respectively. Similar observation has been obtained by Gupta et al where the application of Rhodococcus opacus could remove up to almost 100% of COD with a maximum lipid yield of 1.8 g L−1 at a retention time of 6.6 hr [39].…”

Section: Oleaginous Fungi and Bacteriasupporting

confidence: 88%

“…The application of fungi and bacteria in wastewater purification is much lesser as compared to its counterparts' microalgae and yeasts. Up to date, only a few literature has been reported using Oleaginous fungi namely Aspergillus oryzae [53]¬, Trichoderma reesei ¬ [54], Rhodococcus opacus [39], Rhodococcus sp. [55] as shown in Table 4.…”

Section: Oleaginous Fungi and Bacteriamentioning

confidence: 99%

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A Review on Oleaginous Microorganisms for Biological Wastewater Treatment: Current and Future Prospect

2020

J. Environ. Treat. Tech.

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The water scarcity issue is becoming a critical issue to the climate change, industrialization and urbanization. Prompt to the advances in biotechnology, Oleaginous microorganisms have been discovered and successfully applied in biological wastewater treatments, which are highly effective for wastewater clean-up and energy efficient lipid conversion to value-added products. This paper aims to review the recent advances of the application of different types of Oleaginous microorganisms (e.g. yeasts, microalgae, and fungi) as well as the advantages, limitations and application fields (food industry, municipal waste and chemical plant). The future prospect and challenges of Oleaginous microorganism that warrant in environmental settings or engineered systems are also highlighted in the review. In order to improve the Technology Readiness Level (TRL), the future research direction should be more focussed on the economic and environmental studies.

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Section: Oleaginous Fungi and Bacteriasupporting

confidence: 88%

Section: Oleaginous Fungi and Bacteriamentioning

confidence: 99%

A Review on Oleaginous Microorganisms for Biological Wastewater Treatment: Current and Future Prospect

2020

J. Environ. Treat. Tech.

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“…It has been reported that different physicochemical factors affect the yield of lipids such as pH of the medium, temperature, agitation speed, aeration rate, carbon source, nitrogen source, and C:N ratio of the medium.Agitation can cause shear forces, which influence the microorganism's morphology, variation in growth and metabolites formation [23]. Similar type of findings was reported with the dairy wastewater using R. opacus oleaginous strain by Nikhil Gupta for its applications as a biofuel [24].…”

Section: Production and Extraction Of Lipidssupporting

confidence: 69%

Pineapple Waste and Wastewater: Route for Biodiesel Production from Candida tropicalis (MF510172)

Kanakdande

Agrwal

Khobragade

2019

Braz. arch. biol. technol.

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The aim of the present study was to utilize waste resources for biodiesel production and to test its recyclability. The oleaginous yeast was isolated from local municipal wastewater outlet and on the basis of 18S r RNA sequencing, isolate was identified as Candida tropicalis (MF510172). Optimum fermentation conditions for lipid yield was recorded to be at 180 rpm agitation speed, 6 % pineapple waste as a carbon source, 5 % inoculum size,48 h inoculum age at 40°C temperature with 72 h incubation time. Candia was able to produce 13 ml. L-1 lipids using optimum conditions. Extracted lipids were transesterified to form fatty acid methyl esters (FAME) and further characterized by using GC-MS and FTIR spectroscopy. Palmitic acid methyl esters and other supplementary hydrocarbon compounds were identified using GC-MS. FTIR spectrum indicates the characteristics FAME peak at 1740 cm-1 with C= O stretching band of methyl esters. The results clearly demonstrate the waste resources containing filtered wastewater and pineapple waste used in the study are effective to produce quality oil for biodiesel production.

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“…The heterogeneous catalyst used to overcome the problem related to the homogeneous catalyst has easy recovery, reusability, and purification in the absence of water, a low corrosive character that makes it more suitable for biodiesel production (Gupta et al 2017(Gupta et al , 2020. There are two types; acid and base heterogeneous are available.…”

Section: Heterogeneous Catalystmentioning

confidence: 99%

A comprehensive review on oleaginous bacteria: an alternative source for biodiesel production

Koreti

Kosre

Jadhav

et al. 2022

Bioresour. Bioprocess.

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Due to continuously increasing population, industrialization, and environmental pollution, lead to generating high energy demand which suitable for our environment. Biodiesel is an alternative renewable fuel source. According to the feedstock of production, biodiesel has been categorized into four generations. The main disadvantage of the first and second generation is the raw material processing cost that the challenge for its industrial-level production. Oleaginous bacteria that contain more than 20% lipid of their cellular biomass can be a good alternative and sustainable feedstock. Oleaginous bacteria used as feedstock have numerous advantages, such as their high growth rate, being easy to cultivate, utilizing various substrates for growth, genetic or metabolic modifications possible. In addition, some species of bacteria are capable of carbon dioxide sequestration. Therefore, oleaginous bacteria can be a significant resource for the upcoming generation’s biodiesel production. This review discusses the biochemistry of lipid accumulation, screening techniques, and lipid accumulation factors of oleaginous bacteria, in addition to the overall general biodiesel production process. This review also highlights the biotechnological approach for oleaginous bacteria strain improvement that can be future used for biodiesel production and the advantages of using general biodiesel in place of conventional fuel, along with the discussion about global policies and the prospect that promotes biodiesel production from oleaginous bacteria. Graphical Abstract

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Real-time lipid production and dairy wastewater treatment using Rhodococcus opacus in a bioreactor under fed-batch, continuous and continuous cell recycling modes for potential biodiesel application

Cited by 16 publications

References 20 publications

A Review on Oleaginous Microorganisms for Biological Wastewater Treatment: Current and Future Prospect

A Review on Oleaginous Microorganisms for Biological Wastewater Treatment: Current and Future Prospect

Pineapple Waste and Wastewater: Route for Biodiesel Production from Candida tropicalis (MF510172)

A comprehensive review on oleaginous bacteria: an alternative source for biodiesel production

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