Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/28048
Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: Mass Production of Lemna minor and Its Amino Acid and Fatty Acid Profiles
Author(s): Chakrabarti, Rina
Clark, William D
Sharma, Jai Gopal
Goswami, Ravi Kumar
Shrivastav, Avanish Kumar
Tocher, Douglas R
Keywords: Lemna minor
organic manure
proximate composition
amino acids
fatty acids
Issue Date: 15-Oct-2018
Date Deposited: 26-Oct-2018
Citation: Chakrabarti R, Clark WD, Sharma JG, Goswami RK, Shrivastav AK & Tocher DR (2018) Mass Production of Lemna minor and Its Amino Acid and Fatty Acid Profiles. Frontiers in Chemistry, 6, Art. No.: 479. https://doi.org/10.3389/fchem.2018.00479
Abstract: The surface floating duckweed Lemna minor (Lemnaceae) is a potential ingredient to replace the application of fish-meal in the aqua-feed. The culture technique of the duckweed was standardized in outdoor tanks and then applied in the pond. Three consecutive experiments were conducted in tanks (1.2 × 0.35 × 0.3 m). In experiment 1, four different manures were used. In manure 1 (organic manure, OM) and manure 3 (2x OM), cattle manure, poultry droppings, and mustard oil cake (1:1:1) were used; in manure 2 (inorganic fertilizer, IF), urea, potash, triple superphosphate were used; manure 4 (2x OM+IF) was a combination of manure 2 and manure 3. In experiment 2, manure 1 (OM) and manure 2 (IF) were used, and manure 3 (OM+IF) was a combination of both manures. In experiment 3, OM and IF were selected. In pond (20 × 10 × 0.5 m), OM was applied. Fresh duckweed was seeded after 5 days of manure application. In experiments 1 and 3, total production was significantly (P < 0.05) higher in OM compared to other treatments. In experiment 2, there was no significant (P > 0.05) difference in production between OM and IF. In pond, relative growth rate (RGR) of duckweed ranged from 0.422 to 0.073 g/g/day and total production was 702.5 Kg/ha/month (dry weight). Protein, lipid, and ash contents were higher in duckweed cultured in OM compared to IF. The duckweed was a rich source of essential (39.20%), non-essential (53.64%), and non-proteinogenic (7.13%) amino acids. Among essential amino acids, leucine, isoleucine, and valine constituted 48.67%. Glutamic acid was 25.87% of total non-essential amino acids. Citrulline, hydroxiproline, taurine, etc. were found in the duckweed. The fatty acid composition was dominated by PUFA, 60–63% of total fatty acids, largely α-linolenic acid (LNA, 18:3n-3) at around 41 to 47% and linoleic acid (LA, 18:2n-6) at 17–18%. The nutritional value of duckweeds and their production potential in the pond conditions were evaluated. Duckweed biomass may thus be used to replace commercial fish-meal that is currently used in aquaculture.
DOI Link: 10.3389/fchem.2018.00479
Rights: © 2018 Chakrabarti, Clark, Sharma, Goswami, Shrivastav and Tocher. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
Licence URL(s): http://creativecommons.org/licenses/by/4.0/

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