A novel approach to enhance astaxanthin production in Haematococcus lacustris using a microstructure-based culture platform

Han, Sang Il; Yao, Junyi; Lee, Changsu; Park, Jaewon; Choi, Yoon E.

doi:10.1016/j.algal.2019.101464

Cited by 20 publications

(7 citation statements)

References 33 publications

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“…To exemplify how our tool can be used to uncover novel genes and conserved gene clusters in biosynthetic pathways, we analyzed the secondary carotenoid biosynthesis pathway in Haematococcus lacustris via co-expression analysis. Haematococcus lacustris is a unicellular freshwater microalga that is a rich source of astaxanthin, a highly valued red xanthophyll known for its potent antioxidant activity (Han et al , 2019).…”

Section: Methodsmentioning

confidence: 99%

Protist.guru: a comparative transcriptomics database for the protist kingdom

Villanueva

Lim

et al. 2021

Preprint

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SummaryDuring the last few decades, the study of microbial ecology has been enabled by molecular and genomic data. DNA sequencing has revealed the surprising extent of microbial diversity and how microbial processes run global ecosystems. However, significant gaps in our understanding of the microbial world remain, and one example is that microbial eukaryotes, or protists, are still neglected. To address this gap, we used gene expression data from 15 distinct protist species to create protist.guru: an online database equipped with tools for identifying functional co-expression networks, gene families, and enriched gene clusters. Here, we show how our database can be used to reveal genes involved in essential pathways, such as the synthesis of secondary carotenoids in Haematococcus lacustris. We expect protist.guru to serve as a valuable resource for protistologists, as well as a catalyst for discoveries and new insights into the biological processes of microbial eukaryotes.AvailabilityThe database and co-expression networks are freely available from http://protist.guru/. The expression matrices and sample annotations are found in the supplementary data.

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Section: Methodsmentioning

confidence: 99%

Protist.guru: a comparative transcriptomics database for the protist kingdom

Villanueva

Lim

et al. 2021

Preprint

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“…The extraction of chlorophyll (Chl) from laver was conducted under dim light according to the methods reported previously with some modifications (Han et al, 2019). Ten milligrams of freeze-dried laver powder and 1 ml of 80% acetone (v/v) solution were simultaneously ground using a tissue grinder.…”

Section: Determination Of Chlorophyll Contentmentioning

confidence: 99%

Effect of acidification and thermal treatment on quality characteristics of high‐moisture laver ( Porphyra spp.)

Shen

Liu

et al. 2022

Food Processing Preservation

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Laver (Porphyra spp.) is one of the most commercially available marine crops in the coastal areas of China, which can be reflected by increasing production from 107,235 tons in 2009 to 212,304 tons in 2019 (Bureau of Fishery in Ministry of Agriculture of China, 2020). Considering its advantage of delicious taste and rich nutritional value, laver is widely consumed among consumers (Bito et al., 2017; Hwang et al., 2013). However, fresh laver is harvested seasonally and perishable as a result of high-water content. Hence, a large portion of products, including seaweed round cakes, roasted seaweed, and seasoned seaweed, are mainly dried (Park et al., 2019). As consumption upgrades, dried laver products cannot satisfy consumers' diversified needs for instant laver products. The development of healthy, delicious, high-moisture and ready-to-eat laver products with long shelf life not only enriches the types of products but also promotes the development of laver processing industry.

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“…El H. pluvialis es una microalga verde biflagelada que bajo condiciones de estrés acumula cantidades considerables del carotenoide astaxantina, el cual es empleado en diferentes industrias como la alimentarias, farmacéutica, cosmética, acuicultura y nutracéutica, por ser un colorante y un compuesto bioactivo (Damiani et al, 2010;Camacho et al, 2013;Miranda et al, 2019;Gómez et al, 2019;Hossain et al, 2017). Las condiciones de estrés utilizadas son la luz (Li et al, 2019), la fotoinducción, el color, la irradiancia, el fotoperiodo, deficiencia de nutrientes, salinidad, altas concentraciones de CO 2 ; para ello, se usan fotobiorreactores (FBR) (Hernández et al, 2015;Liang et al, 2015;Cheng et al, 2016;Hi et al, 2017;Christian et al, 2018;Cho et al, 2018;Azizi et al, 2019;Gómez et al, 2019;Han et al, 2019) y sonidos (Christwardana y Hadiyanto, 2017).…”

Section: Introductionunclassified

Efecto de los parámetros cinéticos de escalamiento del cultivo de Haematococcus pluvialis en fotobiorreactores para producir astaxantina

2022

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El Haematococcus pluvialis es una microalga de interés biotecnológico por su capacidad para producir astaxantina, un carotenoide que tiene uso como pigmento y compuesto bioactivo, con aplicación en la industria farmacéutica, cosmética, nutracéutica, alimenticia y la acuacultura. Este carotenoide se obtiene cuando la microalga es sometida a condiciones de estrés como intensidad de luz, color de luz, deficiencia de nutrientes y salinidad, e involucra el uso de fotobiorreactores (fbr). Por esto, este artículo busca conocer el tipo de fbr que se ha utilizado en su escalamiento y los parámetros cinéticos relacionados que influyen en el rendimiento del proceso. Los fbr facilitan el ajuste y control de las condiciones de cultivo, tanto en la fase verde como en la fase roja; de igual manera, el uso de los parámetros cinéticos de escalamiento permiten evaluar el proceso y así establecer las condiciones que deben ajustarse, para mejorar el cultivo de la microalga y la obtención de astaxantina. Los parámetros cinéticos de escalamiento revisados fueron la biomasa (cel./mL), la productividad de biomasa (g/Ldía), la velocidad específica de crecimiento (µ/día), el tiempo de duplicación (día), el contenido de astaxantina (mg/g) y su productividad. Se demuestra así la factibilidad tecnológica de los fotobiorreactores para el escalamiento de la microalga para producir astaxantina. Los fbr más usados son los de forma tubular y cilíndrica por tener una superficie mayor de iluminación y eficiencia en la distribución de la luz, y por reportar mayor productividad de astaxantina; su desventaja pueden ser los costos de limpieza.

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A novel approach to enhance astaxanthin production in Haematococcus lacustris using a microstructure-based culture platform

Cited by 20 publications

References 33 publications

Protist.guru: a comparative transcriptomics database for the protist kingdom

Protist.guru: a comparative transcriptomics database for the protist kingdom

Effect of acidification and thermal treatment on quality characteristics of high‐moisture laver ( Porphyra spp.)

Efecto de los parámetros cinéticos de escalamiento del cultivo de Haematococcus pluvialis en fotobiorreactores para producir astaxantina

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