Application of polysaccharide-rich solution derived from waste macroalgae Enteromorpha prolifera in cherry tomato preservation and utilizing post-extraction residue for crude bio-oil production

Yijing Wu; Xin Xu; Xuanjing Jiang; Shuji Liu; Jingying Lin; Xiaoyu Lin; Yange Zhang; Chuanyang Shi; Chao Zhao; Jie Yang

doi:10.1016/j.foodchem.2022.135301

Application of polysaccharide-rich solution derived from waste macroalgae Enteromorpha prolifera in cherry tomato preservation and utilizing post-extraction residue for crude bio-oil production

Food Chem. 2023 May 30:409:135301. doi: 10.1016/j.foodchem.2022.135301. Epub 2022 Dec 24.

Authors

Yijing Wu¹, Xin Xu¹, Xuanjing Jiang², Shuji Liu³, Jingying Lin⁴, Xiaoyu Lin⁴, Yange Zhang¹, Chuanyang Shi⁵, Chao Zhao⁶, Jie Yang⁷

Affiliations

¹ Institute of Oceanography, College of Geography and Oceanography, Minjiang University, Fuzhou 350108, China; Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Minjiang University, Fuzhou 350108, China.
² College of Oceanology and Food Science, Quanzhou Normal University, Quanzhou 362000, China.
³ Key Laboratory of Cultivation and High-value Utilization of Marine Organisms in Fujian Province, Fisheries Research Institute of Fujian, Xiamen 361013, China.
⁴ Institute of Oceanography, College of Geography and Oceanography, Minjiang University, Fuzhou 350108, China.
⁵ Department of Nutrition and Food Studies, Steinhardt School of Culture, Education, and Human Development, New York University, NY, United States.
⁶ College of Marine Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China. Electronic address: [email protected].
⁷ Institute of Oceanography, College of Geography and Oceanography, Minjiang University, Fuzhou 350108, China; Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Minjiang University, Fuzhou 350108, China. Electronic address: [email protected].

PMID: 36587516
DOI: 10.1016/j.foodchem.2022.135301

Abstract

Preservative is of importance to retard fruit deterioration and prolong the shelf-life. The suitability of using water-soluble polysaccharide extracted from waste macroalgae Enteromorpha prolifera (EPP) for cherry tomato preservation was evaluated. As compared with the control, the EPP-treated cherry tomatoes exhibited better fruit appearance, lower disease index and rot index during storage. Around 47 % EPP-treated cherry tomatoes were commercially acceptable after 36 days, which was however only 15.6 % for untreated cherry tomatoes, indicating the satisfactory preservation effectiveness of EPP-rich solution for cherry tomatoes. The post-extraction residue was commonly underutilized, we herein attempted to employ an emerging thermochemical conversion technique, hydrothermal liquefaction, to produce crude bio-oil (biocrude) from post-extraction E. prolifera. A biocrude yield of ∼23 wt% (dry-ash-free, daf) was obtained, and fatty acids and phenolics were identified to be the two main components in biocrude. The biocrude contained ∼70 % carbon and the higher heating value was ∼30 MJ/kg.

Keywords: Biocrude; Cherry tomato; Hydrothermal liquefaction; Natural polysaccharide; Preservative.

MeSH terms

Biofuels
Petroleum*
Seaweed*
Solanum lycopersicum*
Temperature
Ulva*
Water

Substances

Bio-Oil
Petroleum
Biofuels
Water