Cultivation of the heterotrophic microalga Galdieria sulphuraria on food waste: A Life Cycle Assessment

Research output: Journal contributionsJournal articlesResearchpeer-review

Standard

Cultivation of the heterotrophic microalga Galdieria sulphuraria on food waste : A Life Cycle Assessment. / Thielemann, Anne Karolin; Smetana, Sergiy; Pleissner, Daniel.

In: Bioresource Technology, Vol. 340, 125637, 01.11.2021.

Research output: Journal contributionsJournal articlesResearchpeer-review

Harvard

APA

Vancouver

Bibtex

@article{89a37cd5b64a419193e1cb03fb18d208,
title = "Cultivation of the heterotrophic microalga Galdieria sulphuraria on food waste: A Life Cycle Assessment",
abstract = "The aim of this study was to perform a Life Cycle Assessment of a production process of 1 kg dry algal biomass powder (Galdieria sulphuraria) with 27 % (w/w) protein content for human consumption for optimizing the production regarding global warming potential and resource efficiency in combination with food waste utilization. It was investigated, underpinned by a comparison of the use of conventional glucose, whether and to what extent the environmental impact/global warming potential can be reduced by changing to food waste hydrolysate and how this can lead to a more sustainable use of resources and a sustainable development. Overall, the results showed that hydrolysis, along with freeze-drying, caused most of the overall impact. The carbon footprint associated with the use of hydrolyzed food waste was 11% higher than using conventional glucose and supplementary nutrients mainly driven by the high demand of energy for hydrolysis.",
keywords = "Bioeconomy, Food waste, LCA, Nutrient recovery, Proteins, Biology",
author = "Thielemann, {Anne Karolin} and Sergiy Smetana and Daniel Pleissner",
year = "2021",
month = nov,
day = "1",
doi = "10.1016/j.biortech.2021.125637",
language = "English",
volume = "340",
journal = "Bioresource Technology",
issn = "0960-8524",
publisher = "Elsevier Limited",

}

RIS

TY - JOUR

T1 - Cultivation of the heterotrophic microalga Galdieria sulphuraria on food waste

T2 - A Life Cycle Assessment

AU - Thielemann, Anne Karolin

AU - Smetana, Sergiy

AU - Pleissner, Daniel

PY - 2021/11/1

Y1 - 2021/11/1

N2 - The aim of this study was to perform a Life Cycle Assessment of a production process of 1 kg dry algal biomass powder (Galdieria sulphuraria) with 27 % (w/w) protein content for human consumption for optimizing the production regarding global warming potential and resource efficiency in combination with food waste utilization. It was investigated, underpinned by a comparison of the use of conventional glucose, whether and to what extent the environmental impact/global warming potential can be reduced by changing to food waste hydrolysate and how this can lead to a more sustainable use of resources and a sustainable development. Overall, the results showed that hydrolysis, along with freeze-drying, caused most of the overall impact. The carbon footprint associated with the use of hydrolyzed food waste was 11% higher than using conventional glucose and supplementary nutrients mainly driven by the high demand of energy for hydrolysis.

AB - The aim of this study was to perform a Life Cycle Assessment of a production process of 1 kg dry algal biomass powder (Galdieria sulphuraria) with 27 % (w/w) protein content for human consumption for optimizing the production regarding global warming potential and resource efficiency in combination with food waste utilization. It was investigated, underpinned by a comparison of the use of conventional glucose, whether and to what extent the environmental impact/global warming potential can be reduced by changing to food waste hydrolysate and how this can lead to a more sustainable use of resources and a sustainable development. Overall, the results showed that hydrolysis, along with freeze-drying, caused most of the overall impact. The carbon footprint associated with the use of hydrolyzed food waste was 11% higher than using conventional glucose and supplementary nutrients mainly driven by the high demand of energy for hydrolysis.

KW - Bioeconomy

KW - Food waste

KW - LCA

KW - Nutrient recovery

KW - Proteins

KW - Biology

UR - http://www.scopus.com/inward/record.url?scp=85111052755&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/98f4dfbf-86da-373c-81f5-54bc4df0aa38/

U2 - 10.1016/j.biortech.2021.125637

DO - 10.1016/j.biortech.2021.125637

M3 - Journal articles

C2 - 34315124

AN - SCOPUS:85111052755

VL - 340

JO - Bioresource Technology

JF - Bioresource Technology

SN - 0960-8524

M1 - 125637

ER -