Phycobiliproteins, nitrogenous compounds and fatty acid contents in field-collected and cultured gametophytes of Porphyra dioica, a red sea vegetable

Varela-Álvarez, Elena; Tobin, Paul R.; Guihéneuf, Freddy; Fitzgerald, Richard J.; Stengel, Dagmar B.

doi:10.1007/s10811-019-01841-6

Cited by 6 publications

(5 citation statements)

References 42 publications

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“…The abbreviations were the same in Table 1. The chemical compositions of N. yezoensis and N. haitanensis were generally in accordance with the previous studies regarding the same species or the other laver species, and these laver species were all characterized by high content of protein and low content of fat [7,[12][13][14][15][16][17]22,23,30,31]. The mineral content in seaweeds is generally higher compared to that of terrestrial plants and animal products [32][33][34][35].…”

Section: Principal Component Analysis (Pca) Of Different N Yezoensis ...supporting

confidence: 84%

“…The quality of laver, in terms of the composition of nutrients (proteins, amino acids (AAs), free amino acids (FAAs), minerals and trace elements, flavor [the ratio of delicious amino acids (DAAs) to total amino acids (TAAs)], thickness, color (pigment composition), etc., may differ among species [12], strains [13], harvesting times [7,14], culture areas [15], between the male and female parts of a blade [16], and between the periodically drying and non-drying culture systems [17]. It has been testified that the levels of dissolved inorganic nitrogen (DIN) and phosphorus (DIP) are closely related to the growth and metabolism of laver based on laboratory experiments [18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

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The Influence of Ecological Factors on the Contents of Nutritional Components and Minerals in Laver Based on Open Sea Culture System

Liang

Wang

Liu

et al. 2022

JMSE

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Laver is a popular food for its high nutritional value, which can change among culture areas and along with the progression of harvest. Neopyropia yezoensis and Neoporphyra haitanensis were cultured in succession in Taoluo and Muping, north China. The chemical composition of laver samples together with some ecological factors in the farms were investigated. From September to December, salinity increased while water temperature decreased in both areas. Dissolved inorganic nitrogen (DIN) and N:P decreased in Taoluo while increasing in Muping. Both N. yezoensis and N. haitanensis contained high levels of protein (26.90–41.38% DW) and low contents of fat (0.36–0.74% DW). High levels of minerals were detected in both species. The contents of protein, total amino acids, and total minerals in N. haitanensis increased significantly, while sugar content decreased significantly from September to December. The gray correlation analysis result implied that the typical ecological factors (DIN, dissolved inorganic phosphorus, N:P, pH, salinity, temperature, and transparency) have a great influence on accumulation of the crude nutrient, amino acid, fatty acid components, and mineral components in laver. The coefficient of variation analysis result also showed that environmental heterogeneity obviously enhanced differences in the contents of protein, amino acid, and trace elements in N. yezoensis. In addition, the principal component analysis result showed that the N. yezoensis strain ‘Huangyou No. 1’ had the highest comprehensive evaluation score in the four tested N. yezoensis strains, indicating that it has the best comprehensive quality and greatest exploitable value. We hope these findings will help to improve future laver breeding and farming.

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Section: Principal Component Analysis (Pca) Of Different N Yezoensis ...supporting

confidence: 84%

Section: Introductionmentioning

confidence: 99%

The Influence of Ecological Factors on the Contents of Nutritional Components and Minerals in Laver Based on Open Sea Culture System

Liang

Wang

Liu

et al. 2022

JMSE

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“…From a gender point of view, the female gametophyte of C. costata presents a larger cell size than the male (Fu et al., 2010), and they have different physiological functions. It has been reported that the difference in the physiological function of male and female gametophytes leads to their different sensitivity to the environment/biological factors, which may affect their lipid contents (Varela‐Lvarez et al., 2019). Moreover, relevant studies have found that there are huge differences in gene expression between male and female gametophytes at different development stages of S. japonica .…”

Section: Resultsmentioning

confidence: 99%

Gametophyte phase of commercial kelps, the potential food supplements for essential fatty acids and n‐3 polyunsaturated fatty acids

Geng

Jia

Liu

et al. 2023

Journal of Food Science

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For heteromorphic algae with alternating generations, the thallus and gametophyte phases are different morphologies in free-living life history.The thalli are popular used as traditional vegetables and herbal drugs, whereas the gametophyte phases are little involved. To better understand the functional lipids in the gametophyte phase of three commercial kelps, Saccharina japonica, Undaria pinnatifida, and Costaria costata, the contents of total lipids (TLs), fatty acid (FA) profiles, and transcriptomic analysis were performed. For the studied kelps, the TL contents in gametophyte phase were always almost twice more than those in the thallus, and the kelp species, their life stage, and the gender were critical factors affecting lipid accumulation. The gametophyte phases of U. pinnatifida and C. costata were rich in essential FA C18:2 n − 6 and C18:3 n − 3.The S. japonica gametophyte phase contained abundant C20:5 n − 3 and C18:4 n − 3, possessed an ideal ratio of n − 6/n − 3 polyunsaturated fatty acid below 1.0, and was supported by the transcriptome data which showed that the key sjD12/15 (n − 3) gene of gametophyte partially upregulated than sporophyte. The results suggested that S. japonica gametophyte phase was the worthiest of further development and utilization as a functional food.

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“…Among the phycobiliproteins of N. yezoensis , the percentage of phycoerythrin accounted for about 40% [ 13 ]. Currently, commercial phycoerythrin was mainly extracted from the red macroalga Neopyropia [ 40 ], such as N. linearis [ 41 ] and N. dioica [ 42 ], which contained 0.29% DW and 0.97% DW of phycoerythrin, respectively. However, the phycoerythrin content of the three strains of Porphyridium reached an average of 6% DW, which was higher than that of Neopyropia .…”

Section: Discussionmentioning

confidence: 99%

Comparison of Production and Fluorescence Characteristics of Phycoerythrin from Three Strains of Porphyridium

Xiang

et al. 2022

Foods

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Phycoerythrin, a special photosynthetic pigment, is widely used as fluorescent dye and has lots of underlying beneficial effects on health. A marine red microalga Porphyridium is considered as the potential feedstock for phycoerythrin production. However, the phycoerythrin-related properties of Porphyridium have not been systematically evaluated, especially between the species of P. cruentum and P. purpureum. The present study aimed to evaluate the production and fluorescence characteristics of phycoerythrin of three strains of Porphyridium. The results showed that P. purpureum SCS-02 presented the highest biomass, phycoerythrin content and yield were 6.43 g L−1, 9.18% DW and 0.288 g L−1, respectively. There was no significant difference between P. purpureum and P. cruentum in α and β subunits amino acid sequences of phycoerythrin and in fluorescence characteristics. The high gene expression level of the key enzymes in phycoerythrobilin synthesis (porphobilinogen synthase and oxygen-dependent coproporphyrinogen-III oxidase) could be related to the high phycoerythrin content of Porphyridium. Based on systematic evaluation, P. purpureum SCS-02 was selected due to its high biomass and phycoerythrin yield. P. purpureum and P. cruentum were highly similar in the phylogenetic tree, as well as in fluorescence characteristics; therefore, it was speculated that they might be the same Porphyridium species.

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Phycobiliproteins, nitrogenous compounds and fatty acid contents in field-collected and cultured gametophytes of Porphyra dioica, a red sea vegetable

Cited by 6 publications

References 42 publications

The Influence of Ecological Factors on the Contents of Nutritional Components and Minerals in Laver Based on Open Sea Culture System

The Influence of Ecological Factors on the Contents of Nutritional Components and Minerals in Laver Based on Open Sea Culture System

Gametophyte phase of commercial kelps, the potential food supplements for essential fatty acids and n‐3 polyunsaturated fatty acids

Comparison of Production and Fluorescence Characteristics of Phycoerythrin from Three Strains of Porphyridium

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