Sustainable biorefinery concept for biofuel production through holistic volarization of food waste
Document identifier: oai:DiVA.org:ltu-76458
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10.1016/j.biortech.2019.122247Keyword: Engineering and Technology,
Industrial Biotechnology,
Bioprocess Technology,
Teknik och teknologier,
Industriell bioteknik,
Bioprocessteknik,
Food waste,
Enzymatic hydrolysis,
Microalgae,
Heterotrophic cultivation,
Lipids,
Fatty acid methyl esters,
Biokemisk processteknik,
Biochemical Process EngineeringPublication year: 2019Relevant Sustainable Development Goals (SDGs):
The SDG label(s) above have been assigned by OSDG.aiAbstract: The aim of this study was to utilize the whole food waste in two stages. In the first stage, the carbohydrate and protein fractions of food waste recovered after enzymatic hydrolysis was used to cultivate heterotrophic microalgae, resulting in biomass yield of 0.346 ± 0.09 g/gsugars and lipid yield of 0.216 ± 0.06 g/gsugars. In the second stage, oil (14.15% w/w) was extracted from food waste after hydrolysis and converted to biodiesel by a two-step transesterification reaction that generated 135.8 g/kgfood waste of fatty acid methyl esters and 13.8 g/kgfood waste of crude glycerol. Finally, crude glycerol obtained from both processes was used at 20 g/L to cultivate heterotrophic microalgae, resulting in a cell dry weight and total lipid concentration of 6.23 g/L and 2.91 g/L, respectively. A total 248.21 g of fatty acid methyl esters were obtained from the 1 kg of food waste through this integrated process.
Authors
Alok Patel
Luleå tekniska universitet; Kemiteknik
Other publications
>>
Katerina Hruzova
Luleå tekniska universitet; Kemiteknik
Other publications
>>
Ulrika Rova
Luleå tekniska universitet; Kemiteknik
Other publications
>>
Paul Christakopoulos
Luleå tekniska universitet; Kemiteknik
Other publications
>>
Leonidas Matsakas
Luleå tekniska universitet; Kemiteknik
Other publications
>>
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identifier: oai:DiVA.org:ltu-76458
datestamp: 2021-04-19T12:37:08Z
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recordCreationDate: 2019-10-21
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10.1016/j.biortech.2019.122247
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2-s2.0-85073202083
titleInfo:
@attributes:
lang: eng
title: Sustainable biorefinery concept for biofuel production through holistic volarization of food waste
abstract: The aim of this study was to utilize the whole food waste in two stages. In the first stage the carbohydrate and protein fractions of food waste recovered after enzymatic hydrolysis was used to cultivate heterotrophic microalgae resulting in biomass yield of 0.346 ± 0.09 g/gsugars and lipid yield of 0.216 ± 0.06 g/gsugars. In the second stage oil (14.15% w/w) was extracted from food waste after hydrolysis and converted to biodiesel by a two-step transesterification reaction that generated 135.8 g/kgfood waste of fatty acid methyl esters and 13.8 g/kgfood waste of crude glycerol. Finally crude glycerol obtained from both processes was used at 20 g/L to cultivate heterotrophic microalgae resulting in a cell dry weight and total lipid concentration of 6.23 g/L and 2.91 g/L respectively. A total 248.21 g of fatty acid methyl esters were obtained from the 1 kg of food waste through this integrated process.
subject:
@attributes:
lang: eng
authority: uka.se
topic:
Engineering and Technology
Industrial Biotechnology
Bioprocess Technology
@attributes:
lang: swe
authority: uka.se
topic:
Teknik och teknologier
Industriell bioteknik
Bioprocessteknik
@attributes:
lang: eng
topic: Food waste
@attributes:
lang: eng
topic: Enzymatic hydrolysis
@attributes:
lang: eng
topic: Microalgae
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lang: eng
topic: Heterotrophic cultivation
@attributes:
lang: eng
topic: Lipids
@attributes:
lang: eng
topic: Fatty acid methyl esters
@attributes:
lang: swe
authority: ltu
topic: Biokemisk processteknik
genre: Research subject
@attributes:
lang: eng
authority: ltu
topic: Biochemical Process Engineering
genre: Research subject
language:
languageTerm: eng
genre:
publication/journal-article
ref
note:
Published
5
Validerad;2019;Nivå 2;2019-10-21 (johcin)
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Alok
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Luleå tekniska universitet
Kemiteknik
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Kemiteknik
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originInfo:
dateIssued: 2019
publisher: Elsevier
relatedItem:
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type: host
titleInfo:
title: Bioresource Technology
identifier:
0960-8524
1873-2976
part:
detail:
@attributes:
type: volume
number: 294
@attributes:
type: artNo
number: 122247
physicalDescription:
form: print
typeOfResource: text