Comparative Studies on the Effect of Three Drying Methods on the Nutritional Composition of Seaweed <i>Sargassum hemiphyllum </i>(Turn.) C. Ag.

Chan, Jenny C.-C.; Cheung, Peter Chi Keung; Ang, Put O.

doi:10.1021/jf9701749

Cited by 179 publications

(114 citation statements)

References 12 publications

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“…This fact may be related to the species, geographical location, season, and/or temperature (Dawes 1998;Jiménez-Escrig and Combrodón 1999). It is also known that the drying method could affect the nutritional value of seaweeds (Chan et al 1997). If properly dried, seaweed samples can be stored for a number of years without appreciable loss of their gel content (FAO 1976).…”

Section: Discussionmentioning

confidence: 99%

Nutritional value of selected macroalgae

et al. 2010

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Macroalgae are traditionally used in human and animal nutrition. Their protein and fiber content have been widely studied and differ according to the species, their geographic origin and their seasonal conditions. In addition to their value for human nutrition, seaweeds have multiple therapeutically applications (e.g., weight control, hypocholesterolemic, antioxidant and antitumor activities, others) and, in general, contribute and promote human health. In the archipelago of the Azores, the consumption of seaweeds is widespread and accepted as a common practice in some islands. This work is aimed at providing information on the protein and fiber content of the locally consumed species, to promote this regional food product that can be potentially profitable from the biotechnology and commercial perspective, and also benefit public health, particularly, taking into account the low level of marine pollution in the Azores archipelago. Protein and fiber content of eight seaweeds (Porphyra sp., Osmundea pinnatifida, Pterocladiella capillacea, Sphaerococcus coronopifolius, and Gelidium microdon, Rhodophyta; Cystoseira abies-marina and Fucus spiralis, Phaeophyta; Ulva compressa, Chlorophyta) were determined using the Kjeldahl method and the Weende method, respectively. The protein content ranged from 6.81 to 26.62 of dry weight for C. abies-marina and U. compressa, respectively. Fiber content was generally higher as compared with that in seaweeds from other origins and ranged from 33.82 to 63.88 for O. pinnatifida and F. spiralis, respectively.

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Section: Discussionmentioning

confidence: 99%

Nutritional value of selected macroalgae

et al. 2010

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“…Primary processes such as drying can effectively stabilize the biomass but require technology and may be difficult to implement close to harvesting sites for large biomass volumes. Drying also affects the chemical content (Chan et al 1997;) with consequences for the product's nutritional value as well as extraction yields of bioactive compounds during further processing. Post-harvest treatments that will contribute to maintaining biomass quality include seawater storage (Paull and Chen 2008), cold storage (Liot et al 1993), silage (Herrmann et al 2015) and freezing (Choi et al 2012).…”

Section: Product Applications-industrial Perspectivesmentioning

confidence: 99%

Seaweed aquaculture in Norway: recent industrial developments and future perspectives

2017

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The use of cultivated seaweeds as a feedstock for multiple industrial applications has gained increasing interest in the Western World over the past decades. Norway has an extensive coastline and a well-established aquaculture sector offering suitable preconditions for developing large-scale cultivation of seaweed biomass both in monoculture and in Integrated Multi-Trophic Aquaculture (IMTA) systems. Recent efforts from research, industry and public authorities have been committed to develop a Norwegian bio-economy based on cultivated seaweed, focusing on cultivation and processing of the biomass. This review reports on the status of seaweed aquaculture in Norway, supported by production data collected since the delivery of the first commercial cultivation permits at sea in 2014. Although novel product developments are currently limited, future industrial perspectives based on cultivated biomass are being discussed. Upscaling from experimental cultivation schemes to commercial production requires a thorough assessment of the risks and benefits associated with seaweed aquaculture, as well as the development of a regulative framework adapted to this industry. Issues associated with upscaling the macroalgal production that needs to be addressed includes (i) genetic interactions between cultivated and wild crops, (ii) impacts of seaweed cultivation on surrounding ecosystems, (iii) epiphytes and diseases, (iv) area utilization and (v) threats from climate change. Addressing these issues and adapting production practices will ensure the environmental and economic sustainability of an emerging industry based on cultivated seaweed biomass in Norway.

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“…Solar drying can cause considerable denaturisation of organic compounds in seaweed [130][131][132][133]. Freeze drying tends to cause less damage to organic materials, but is more expensive than solar or conventional drying, and is typically used for products such as premium instant coffee to give better flavour [134,135].…”

Section: Dryingmentioning

confidence: 99%

Golden Tides: Problem or Golden Opportunity? The Valorisation of Sargassum from Beach Inundations

Milledge

Harvey

2016

JMSE

166

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Abstract:In recent years there have been massive inundations of pelagic Sargassum, known as golden tides, on the beaches of the Caribbean, Gulf of Mexico, and West Africa, causing considerable damage to the local economy and environment. Commercial exploration of this biomass for food, fuel, and pharmaceutical products could fund clean-up and offset the economic impact of these golden tides. This paper reviews the potential uses and obstacles for exploitation of pelagic Sargassum. Although Sargassum has considerable potential as a source of biochemicals, feed, food, fertiliser, and fuel, variable and undefined composition together with the possible presence of marine pollutants may make golden tides unsuitable for food, nutraceuticals, and pharmaceuticals and limit their use in feed and fertilisers. Discontinuous and unreliable supply of Sargassum also presents considerable challenges. Low-cost methods of preservation such as solar drying and ensiling may address the problem of discontinuity. The use of processes that can handle a variety of biological and waste feedstocks in addition to Sargassum is a solution to unreliable supply, and anaerobic digestion for the production of biogas is one such process. More research is needed to characterise golden tides and identify and develop commercial products and processes.

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Comparative Studies on the Effect of Three Drying Methods on the Nutritional Composition of Seaweed Sargassum hemiphyllum (Turn.) C. Ag.

Cited by 179 publications

References 12 publications

Nutritional value of selected macroalgae

Nutritional value of selected macroalgae

Seaweed aquaculture in Norway: recent industrial developments and future perspectives

Golden Tides: Problem or Golden Opportunity? The Valorisation of Sargassum from Beach Inundations

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