用于替代肉类的 C. reinhardtii 生物质的肌红蛋白叶绿体表达和功能鉴定

IF 4.6 2区 生物学 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY
Gandhali Phadnis, Gunjan Prakash
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引用次数: 0

摘要

肌红蛋白因其肉质风味、色泽和口感特性,已被广泛研究用作替代肉类配料。从天然来源提取肌红蛋白不符合替代肉类的无动物标准。考虑到微藻的营养价值和 GRAS 状态,在 C. reinhardtii 中表达肌红蛋白无需提取。本研究旨在开发表达肌红蛋白的 C. reinhardtii 转殖系,并在实验室规模上研究各种光照制度对肌红蛋白含量的影响。在摇瓶中积累的肌红蛋白高达 0.258 mg-g-1 DCW。在 2 升气泡柱袋式反应器中进行的研究表明,肌红蛋白表达系统具有稳定性和可扩展性。此外,通过对表达肌红蛋白的 C. reinhardtii 生物质进行功能分析,确定了其作为替代肉类配料的适用性。这项工作证明了肌红蛋白表达的稳健性及其在替代肉类工业中的应用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Chloroplast expression of myoglobin and functional characterization of C. reinhardtii biomass for alternative meat applications

Chloroplast expression of myoglobin and functional characterization of C. reinhardtii biomass for alternative meat applications
Myoglobin has been extensively studied as an alternative meat ingredient for its meaty flavour, colour, and texture properties. Extracting myoglobin from natural sources does not align with the animal-free criteria of alternative meat. Considering microalgae's nutritional value and GRAS status, myoglobin expression in C. reinhardtii eliminates the need for its extraction. This study aimed to develop myoglobin expressing transplastomic lines of C. reinhardtii and investigate the effect of using various light regimes on myoglobin content at the lab scale. Myoglobin of up to 0.258 mg·g−1 of DCW was accumulated at shake-flask level. Studies at a 2 L bubble column bag reactor demonstrated a stable and scalable Myoglobin expression system. Further, the functional analysis of myoglobin-expressing C. reinhardtii biomass established its applicability as an alternative meat ingredient. The work demonstrates robust myoglobin expression and its application for the alternative meat industry.
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来源期刊
Algal Research-Biomass Biofuels and Bioproducts
Algal Research-Biomass Biofuels and Bioproducts BIOTECHNOLOGY & APPLIED MICROBIOLOGY-
CiteScore
9.40
自引率
7.80%
发文量
332
期刊介绍: Algal Research is an international phycology journal covering all areas of emerging technologies in algae biology, biomass production, cultivation, harvesting, extraction, bioproducts, biorefinery, engineering, and econometrics. Algae is defined to include cyanobacteria, microalgae, and protists and symbionts of interest in biotechnology. The journal publishes original research and reviews for the following scope: algal biology, including but not exclusive to: phylogeny, biodiversity, molecular traits, metabolic regulation, and genetic engineering, algal cultivation, e.g. phototrophic systems, heterotrophic systems, and mixotrophic systems, algal harvesting and extraction systems, biotechnology to convert algal biomass and components into biofuels and bioproducts, e.g., nutraceuticals, pharmaceuticals, animal feed, plastics, etc. algal products and their economic assessment
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