1. Optimization of Hoagland solution macro-elements as a culture media, for increasing protein content of duckweeds (Lemna minor).
- Author
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Akyüz, Ayça and Ersus, Seda
- Subjects
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CULTURE media (Biology) , *DUCKWEEDS , *LEMNA minor , *PLANT proteins , *HYDROPONICS , *RESPONSE surfaces (Statistics) - Abstract
[Display omitted] • Manipulating culture conditions increased duckweed protein content significantly. • The protein content of duckweeds is influenced by KH 2 PO 4 , Ca(NO 3) 2 , and pH value. • Duckweed yields 41.74 % protein in modified vs. 33.01 % in standard Hoagland solution. This study aimed to increase the protein content of duckweed, a promising alternative to animal proteins and a sustainable source of plant protein cultivated via soilless agriculture, by manipulating the culture medium conditions (Hoagland solution). The contribution percentages of KH 2 PO 4 and Ca(NO 3) 2 , pivotal macro-elements in Hoagland solution affecting duckweed protein content, were determined using Plackett-Burman factorial design as 33.06 % and 36.61 %, respectively. Additionally, optimization was conducted employing response surface methodology, incorporating pH alongside KH 2 PO 4 and Ca(NO 3) 2. Under optimal conditions of 3.92 mM KH 2 PO 4 , 7.95 mM Ca(NO 3) 2 , and 7.22 pH, the protein content of duckweed increased significantly, reaching 51.09 % from 39.81 %. The duckweed cultivated in modified Hoagland solution exhibited protein content of 41.74 %, while duckweed grown in commercial Hoagland solution displayed protein content of 33.01 %. This study showed protein content of duckweed could significantly increase according to the growth medium and showcasing its potential as a sustainable source of plant protein. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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