Effects of storage and processing on the ascorbic acid content of concentrates prepared from Chaetoceros calcitrans

Brown, Malcolm R.

doi:10.1007/bf00003934

Cited by 14 publications

(6 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Loss of nutrients during storage of concentrates may affect their efficacy as diets for aquacultured animals (Brown 1995). Brown (1995) found that centrifuged C. calcitrans lost ascorbic acid with storage age. Molina Grima et al .…”

Section: Discussionmentioning

confidence: 99%

Evaluation of centrifuged microalgae concentrates as diets for Penaeus monodon Fabricius larvae

D’Souza

Lecossois

Heasman

et al. 2000

Aquaculture Research

View full text Add to dashboard Cite

Concentrates of nine microalgae widely used in marine hatcheries were prepared by centrifugation, stored chilled for either 9 or 14 weeks and then compared with their fresh counterpart as feeds for Penaeus monodon larvae. The nine species ± Chaetoceros muelleri, C. calcitrans, Isochrysis sp. Tahitian' (T-ISO), Nannochloropsis oculata, Pavlova lutheri, Skeletonema costatum, Phaeodactylum tricornutum, Tetraselmis chuii and Thalassiosira pseudonana ± in fresh and centrifuged forms were fed at high and low cell densities. The Larvatron, a computercontrolled apparatus for rearing planktonic animals, was used for the experiments. Fresh C. muelleri and T. pseudonana promoted the highest survival and fastest development of P. monodon to mysis 1. Although the survival rate of larvae fed concentrated C. muelleri, P. lutheri and T-ISO was comparable with those fed the fresh C. muelleri diet, the larvae fed these concentrates generally developed more slowly. The higher cell density, whether of fresh or concentrated algae, usually produced both higher survival and faster development of larvae. Nannochloropsis oculata and P. tricornutum were poor diets, regardless of their form or feeding density. Concentrating C. calcitrans and S. costatum markedly reduced their ef®cacy as diets. The centrifuged concentrates were unsuitable as complete replacements for fresh algae in larval culture when stored for either 9 or 14 weeks. However, the concentrates may be more successful in combination with other concentrates, fresh algae and/or arti®cial diets, or when stored for a shorter time.

show abstract

Section: Discussionmentioning

confidence: 99%

Evaluation of centrifuged microalgae concentrates as diets for Penaeus monodon Fabricius larvae

D’Souza

Lecossois

Heasman

et al. 2000

Aquaculture Research

View full text Add to dashboard Cite

show abstract

“…Drying by lyophilization might have better nutritional outcomes (Takenaka et al 2001 ), although this has yet to be rigorously demonstrated. Other factors of particular importance to preserving vitamin content include washing methods, storage temperature, light, and moisture content (Online Resource 1 , Brown 1995 ; Jimenez-Escrig et al 2001 ; Lage-Yusty et al 2014 ). There is a strong need for more detailed investigations into how the nutritional quality of sea vegetables is affected by processing methods suited for commercial-scale production.…”

Section: Vitaminsmentioning

confidence: 99%

Algae as nutritional and functional food sources: revisiting our understanding

et al. 2016

View full text Add to dashboard Cite

Global demand for macroalgal and microalgal foods is growing, and algae are increasingly being consumed for functional benefits beyond the traditional considerations of nutrition and health. There is substantial evidence for the health benefits of algal-derived food products, but there remain considerable challenges in quantifying these benefits, as well as possible adverse effects. First, there is a limited understanding of nutritional composition across algal species, geographical regions, and seasons, all of which can substantially affect their dietary value. The second issue is quantifying which fractions of algal foods are bioavailable to humans, and which factors influence how food constituents are released, ranging from food preparation through genetic differentiation in the gut microbiome. Third is understanding how algal nutritional and functional constituents interact in human metabolism. Superimposed considerations are the effects of harvesting, storage, and food processing techniques that can dramatically influence the potential nutritive value of algal-derived foods. We highlight this rapidly advancing area of algal science with a particular focus on the key research required to assess better the health benefits of an alga or algal product. There are rich opportunities for phycologists in this emerging field, requiring exciting new experimental and collaborative approaches.Electronic supplementary materialThe online version of this article (doi:10.1007/s10811-016-0974-5) contains supplementary material, which is available to authorized users.

show abstract

“…Improvements in algal culture systems, particularly the more widespread use of photobioreactors, will continue to reduce supply problems. Alternative approaches that have been taken with varying degrees of success include the use of encapsulated nonalgal food particles (Jones et al, 1987), and sun-dried algae (Millamena et al, 1990), the heterotrophic production of algae to produce a spray-dried powder , and the storage and distribution of algal pastes (Watson et al,, 1986;Brown, 1995). It seems probable that an algal product that could be stored would find widespread application.…”

Section: Aquaculturementioning

confidence: 98%

In vitro culture and conservation of microalgae: Applications for aquaculture, biotechnology and environmental research

Day

Benson

Fleck

1999

In Vitro Cell.Dev.Biol.-Plant

View full text Add to dashboard Cite

Microalgae are a highly diverse group of unicellular organisms comprising the eukaryotic protists and the prokaryotic cyanobacteria or blue-green algae. The microalgae have a unique environmental status; being virtually ubiquitous in euphoric aquatic niches, they can occupy extreme habitats ranging from tropical coral reefs to the polar regions, and they contribute to half of the globe's photosynthetic activity. Furthermore, they form the basis of the food chain for more than 70% of the world's biomass. Microalgae are a valuable environmental and biotechnological resource, and the aim of this review is to explore the use of in vitro technologies in the conservation and sustainable exploitation of this remarkable group of organisms. The first part of the review evaluates the importance of in vitro methods in the maintenance and conservation of microalgae and describes the central role of cuhure collections in applied algal research. The second part explores the application of microalgal in vitro technologies, particularly in the context of the aquaculture and biotechnology industries. Emphasis is placed upon the exploitation of economically important algal products including aquaculture feed, biomass production for the health care sector, green fertilizers, pigments, vitamins, antioxidants, and antimicrobial agents. The contribution that microalgae can make to environmental research is also appraised; for example, they have an important role as indicator organisms in environmental impact assessments. Similarly, designated culture collection strains of microalgae are used for ecotoxicity testing. Throughout the review, emphasis is placed on the application of in vitro techniques for the continued advancement of microalgal research. The paper concludes by assessing future perspectives for the novel application of microalgae and their products.

show abstract

Effects of storage and processing on the ascorbic acid content of concentrates prepared from Chaetoceros calcitrans

Cited by 14 publications

References 12 publications

Evaluation of centrifuged microalgae concentrates as diets for Penaeus monodon Fabricius larvae

Evaluation of centrifuged microalgae concentrates as diets for Penaeus monodon Fabricius larvae

Algae as nutritional and functional food sources: revisiting our understanding

In vitro culture and conservation of microalgae: Applications for aquaculture, biotechnology and environmental research

Contact Info

Product

Resources

About