Food Waste Utilization: Green Technologies for Manufacture of Valuable Products From Food Wastes and Agricultural Wastes

Narayanan, C. M.; Das, Shrijita; Pandey, Aditi

doi:10.1016/b978-0-12-811413-1.00001-2

Cited by 6 publications

(10 citation statements)

References 11 publications

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“…Studies on lactic acid production (anaerobic) from dairy waste (cheese whey) and sugar mill effluent (molasses) in a fluidized bed biofilm reactor using Lactobacillus helveticus culture for the former and Enterococcus faecalis culture for the latter have been presented by Narayanan [50,51]. Cheese whey is first subjected to ultrafiltration to separate all proteins and the lactose content of the permeate is fermented to lactic acid in the biofilm reactor.…”

Section: Fluidized Bed Biofilm Reactors For Treatment Of Industrial Wmentioning

confidence: 99%

“…A rearrangement of reaction zones thus occurs within the reactor column. Since it has been established [51,58] that the major share of bioconversion is affected in the packed section (where close to plug flow of substrate solution exists), an increase in L P causes increase in fractional conversion of substrate. This, in fact, is an exclusive characteristic exhibited only by the semifluidized bed bioreactors.…”

Section: Semifluidized Bed Biofilm Reactors For Treatment Of Industrimentioning

confidence: 99%

“…As observed by Narayanan and Biswas [58], in this case also, the yield of Xanthan gum was seen to be increasing with increase in reactor capacity. Commercial synthesis of lactic acid from cheese whey permeate and molasses (sugar mill effluent) in two phase semifluidized bed bioreactors has also been reported [51,63]. Through mathematical analysis as well as experimental study, the authors have illustrated that more than 80% lactose conversion and more than 85% sucrose conversion to lactic acid could be achieved in a bioreactor with L Sf = 1.2 m and D = 0.5 m, at feed flow rates ranging from 78,000 to 79, 000 L h − 1 , the fractional substrate conversion attained increasing with increase in substrate flow rate.…”

Section: Semifluidized Bed Biofilm Reactors For Treatment Of Industrimentioning

confidence: 99%

“…Mathematical simulation of the performance of two phase inverse fluidized bed biofilm reactors has been attempted by Narayanan et al [51] and Narayanan and Das [73]. The PFDR approach has been employed here with the developed software tested and verified using lab-scale and pilot plant scale experimental data.…”

Section: Inverse Fluidized Bed Biofilm Reactors For the Treatment/hanmentioning

confidence: 99%

See 3 more Smart Citations

Biological wastewater treatment and bioreactor design: a review

Narayanan

Narayan

2019

Sustain Environ Res

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Various processes that have been successfully developed for wastewater treatment (treatment of industrial wastes/ effluents) have been surveyed with special reference to biological treatment including design of bioreactors. Limitations of each process, design and performance characteristics of different kinds of bioreactors developed starting from stirred tanks to packed bed, fluidized bed, moving bed, semifluidized bed, inverse fluidized bed, sludge bed/sludge blanket and downflow stationary fixed film bioreactors have been highlighted. Utilization of membrane-based technology and liquid phase oxygen technology in wastewater treatment has also been analyzed. Both aerobic and anaerobic processes have been considered and possibilities of clubbing waste treatment with waste utilization (production of valuable products from waste streams) have also been surveyed and scrutinized.

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Section: Fluidized Bed Biofilm Reactors For Treatment Of Industrial Wmentioning

confidence: 99%

Section: Semifluidized Bed Biofilm Reactors For Treatment Of Industrimentioning

confidence: 99%

Section: Semifluidized Bed Biofilm Reactors For Treatment Of Industrimentioning

confidence: 99%

Section: Inverse Fluidized Bed Biofilm Reactors For the Treatment/hanmentioning

confidence: 99%

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Biological wastewater treatment and bioreactor design: a review

Narayanan

Narayan

2019

Sustain Environ Res

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“…Because of the high prices of pure raw materials, research is directed towards more economically and environmentally friendlier approaches, e.g. obtaining a LA from waste effluents, such as whey (37). Whey needs to be pre-treated by membrane techniques prior to production of LA to reduce its protein content and increase concentration of lactose and mineral salts.…”

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confidence: 99%

Whey Utilisation: Sustainable Uses and Environmental Approach

Zandona

Blažić

Jambrak

2021

Food Technol. Biotechnol. (Online)

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The dairy industry produces large amounts of whey as a by- product or co-product, which has led to considerable environmental problems due to its high organic matter content. Over the past decades, possibilities of more environmentally and economically efficient whey utilisation have been studied, primarily to convert unwanted end products into a valuable raw material. Sustainable whey management is mostly oriented to biotechnological and food applications for the development of value-added products such as whey powders, whey proteins, functional food and beverages, edible films and coatings, lactic acid and other biochemicals, bioplastic, biofuels and similar valuable bioproducts. This paper provides an overview of the sustainable utilization of whey and its constituents, considering new refining approaches and integrated processes to covert whey, or lactose and whey proteins to high value-added whey-based products.

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Application of lactic acid derived from food waste on pathogen inactivation in fecal sludge: a review on the alternative use of food waste

Odey

Abo

et al. 2018

Reviews on Environmental Health

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Abstract Food waste generation and disposal have led to several environmental problems, especially in developing countries. This phenomenon is partly because most cities rapidly urbanize, which results in population increase, urban settlement and waste generation. Improper management of waste has continued to create environmental problems. These problems have indeed interfered with the inadequate measures in managing other organic waste such as food waste. Food waste can be fermented and used for pathogen inactivation in fecal sludge (FS). The continual decrease in global crop production due to soil erosion, nutrient runoff and loss of organic matter has generated interest in using FS for soil amendment. However, due to the high number of pathogens in FS that are harmful to humans, FS must be treated before being used in agriculture. Thus, given the high amounts of food waste generated globally and the lactic acid potential of fermented food waste, several researchers have recently proposed the use of fermented food waste to suppress pathogens in FS. This review presents the various approaches in pathogen inactivation in FS using different types of food waste. On the basis of the literature review, the major problems associated with the generation, collection and application of food waste in pathogen inactivation in FS are discussed. Moreover, the trends and challenges that concern the applicability of each method are critically reviewed.

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Food Waste Utilization: Green Technologies for Manufacture of Valuable Products From Food Wastes and Agricultural Wastes

Cited by 6 publications

References 11 publications

Biological wastewater treatment and bioreactor design: a review

Biological wastewater treatment and bioreactor design: a review

Whey Utilisation: Sustainable Uses and Environmental Approach

Application of lactic acid derived from food waste on pathogen inactivation in fecal sludge: a review on the alternative use of food waste

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