Bioactives from Marine Resources

Shahidi, Fereidoon

doi:10.1021/bk-2008-0987.ch003

Cited by 3 publications

(2 citation statements)

References 12 publications

(13 reference statements)

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“…Hence, the wide diversity of marine organisms is being recognized as rich sources of functional materials, including polyunsaturated fatty acids (PUFA), polysaccharides, natural pigments (NPs), essential minerals, vitamins, enzymes and bioactive peptides (Shahidi, 2008;Shahidi & Alasalvar, 2011, chap. 36;Shahidi & Janak Kamil, 2001).…”

Section: Introductionmentioning

confidence: 99%

Biological activities and health benefit effects of natural pigments derived from marine algae

Pangestuti

Kim

2011

Journal of Functional Foods

452

267

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Section: Introductionmentioning

confidence: 99%

Biological activities and health benefit effects of natural pigments derived from marine algae

Pangestuti

Kim

2011

Journal of Functional Foods

452

267

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“…Various bioactives isolated from marine algae have also attracted increasing attention in the fields of food, cosmetic and pharmacology [56][57][58][59][60][61][62][63][64][65]. The optimal culture conditions at which the highest production of photosynthetic pigments occurred could not only provide high quality and healthy conchocelis for successful maricultivation of these indigenous Porphyra species but also other potentially high value accessory products such as phycoerythrin, phycocyanin and carotenoids which possess potential active biological functions serving as antioxidants for exploiting and utilizing phycological resources [66][67][68][69].…”

Section: Discussionmentioning

confidence: 99%

Responses of Chlorophyll a Content for Conchocelis Phase of Alaskan Porphyra (Bangiales,Rhodophyta) Species to Environmental Factors

Lin¹

2013

ABB

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Investigations were performed on variations of photosynthetic pigment in conchocelis of Alaskan Porphyra species, P. abbottae (Pa), P. pseudolanceolata (Pe), P. pseudolinearis (Pi) and P. torta (Pt), in response to environmental variables. Conchocelis were cultured under varying conditions of irradiance (0, 10, 40 and 160 µmol photons m-2 s-1), nutrient concentration (0, f/4, f/2 and f) for up to 60 days (with temperature 11°C and salinity 30ppt). Chlorophyll a (Chl a) content was measured by spectrophotometry. Results indicated that Chl content varied with different culture conditions and species. Photosynthetic pigment was significantly affected by irradiance, nutrient concentration and culture duration, including some interactions of major factors for different species. Light had the most obvious influence on pigment content. For all four species and culture conditions tested, the higher Chl a content (3.6-8.6 mg/g.dw) generally occurred at 0-10 µmol photons m-2 s-1 than at higher irradiances (≥40 µmol photons m-2 s-1) culture. For all culture conditions, Chl a content in conchocelis culture with no nutrients added was the lowest. Although there was some difference in Chl a content for cultures with f/2-f nutrient concentration, it was not statistically significant. ANOVA results showed that culture duration had influence on Chl a content of Pa, Pe and Pi species. However, pooled data analysis indicated there was no obvious difference in Chl content for four species of 10-60day culture. There were significant differences in photosynthetic pigment content for different species. Pa and Pi produced much higher pigment content than the other two species responding to different environmental conditions. Maximal Chl. a content (8.6 mg/g.dw) for Pa occurred at 0 µmol photons m-2 s-1 , f/2 nutrient concentration and 10 day culture duration. Pt contained the lowest pigment content for all culture conditions. Photosynthetic pigment remained relatively higher content under the complete darkness or the low irradiance continuously as long as 60 days for all tested species, which demonstrated the unique survival feature of Porphyra conchocelis. Variation patterns of pigment content, ecological significance and adaptation strategy to low or dark light conditions for microscopic conchocelis stage of Porphyra were discussed.

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Seaweeds as a Potential Source of Bioactive Compounds

Ghaliaoui,

Hazzit,

Mokrane

2024

Res. Biotechnol. Environ. Sci.

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Seaweeds or marine macroalgae are the oldest members of the plant kingdom, with a history extending back many hundreds of millions of years. Based on photosynthetic pigments, marine macroalgae can be classified into three groups, namely green algae commonly known as Chlorophyta, brown algae or Phaeophyta, and red algae also called Rhodophyta. In response to different kinds of environmental stress, marine algae develop defense strategies resulting in a significant level of structural chemical diversity, from different metabolic pathways. In this review a brief description of the most important seaweed compounds and their bioactivities are presented in this study. Seaweeds contain minerals, amino acids, proteins, fatty acids, lipids, polysaccharides, dietary fibers, vitamins, and various secondary metabolites, such as phenols, alkaloids, terpenes, and pigments. Many of these constituents possess high economic values and can be extracted to obtain antioxidative, anti-inflammatory, anticancer, antimicrobial, antifungal, antiviral, anti-obesity, antidiabetic, and antihypertensive products. Therefore, a new trend to isolate and identify bioactive compounds and constituents from marine algae has emerged.

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Bioactives from Marine Resources

Cited by 3 publications

References 12 publications

Biological activities and health benefit effects of natural pigments derived from marine algae

Biological activities and health benefit effects of natural pigments derived from marine algae

Responses of Chlorophyll a Content for Conchocelis Phase of Alaskan Porphyra (Bangiales,Rhodophyta) Species to Environmental Factors

Seaweeds as a Potential Source of Bioactive Compounds

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