Seaweeds from Vietnam used for functional food, medicine and biofertilizer

Hồng, Đặng Diễm; Hien, Hoang Minh; Son, P. N.

doi:10.1007/s10811-007-9228-x

Cited by 219 publications

(137 citation statements)

References 19 publications

(17 reference statements)

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“…These extracts are reported to act as chelators, improving the utilization of mineral nutrients by plants and improving soil structure and aeration, which may stimulate root growth (Milton 1964). Seaweed extracts also act as biostimulants, enhancing seed germination and establishment, improving plant growth, yield, flower set and fruit production, increasing resistance to biotic and abiotic stresses, and improving postharvest shelf life (Mancuso et al 2006;Norrie and Keathley 2006;Hong et al 2007aHong et al , 2007bRayorath et al 2008;Khan et al 2009;Craigie 2011;Mattner et al 2013). The biostimulant effects often have been attributed to the presence of plant growth hormones and related low molecular weight compounds present in the extracts (Stirk and van Staden 1997;Tarakhovskaya et al 2007), but other research suggests that larger molecules including unique polysaccharides and polyphenols may also be important as biostimulants, as allelochemicals, and for enhancing resistance to stress (Klarzynski et al 2003;Zhang et al 2006;Rioux et al 2007;González et al 2013).…”

Section: Seaweed Extractsmentioning

confidence: 99%

“…(Hong et al 2007a(Hong et al , 2007bSharma et al 2012). Commercial extract manufacturing processes are generally proprietary, but may include the use of water, acids, or alkalis as extractants with or without heating, or the physical disruption of seaweed using low temperature milling or high pressure (Herve and Rouillier 1977;Stirk and van Staden 2006;Craigie 2011).…”

Section: Seaweed Extractsmentioning

confidence: 99%

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Agricultural uses of plant biostimulants

2014

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Background Plant biostimulants are diverse substances and microorganisms used to enhance plant growth. The global market for biostimulants is projected to increase 12 % per year and reach over $2,200 million by 2018. Despite the growing use of biostimulants in agriculture, many in the scientific community consider biostimulants to be lacking peer-reviewed scientific evaluation. Scope This article describes the emerging definitions of biostimulants and reviews the literature on five categories of biostimulants: i. microbial inoculants, ii. humic acids, iii. fulvic acids, iv. protein hydrolysates and amino acids, and v. seaweed extracts.Conclusions The large number of publications cited for each category of biostimulants demonstrates that there is growing scientific evidence supporting the use of biostimulants as agricultural inputs on diverse plant species. The cited literature also reveals some commonalities in plant responses to different biostimulants, such as increased root growth, enhanced nutrient uptake, and stress tolerance.

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Section: Seaweed Extractsmentioning

confidence: 99%

Section: Seaweed Extractsmentioning

confidence: 99%

Agricultural uses of plant biostimulants

2014

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“…Modern agriculture is looking for new biotechnological advances that would allow a reduction in the use of chemical inputs without affecting crop yield or the farmer's income. In recent years, the use of natural seaweed as fertilizer has allowed for substitution in place of conventional synthetic fertilizer (Hong et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of brown seaweed (Padina pavonica) as biostimulant of plant growth and development

Chbani¹,

Mawlawi²,

Zaouk³

2013

Afr. J. Agric. Res.

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An innovative horticulture nutrient and biodegradable support is described in this paper for replacing plastic culture pots. This support is prepared with Luffa aegyptica, plant having a water holding capacity higher than that of the regular soil and that is also biodegradable. Brown seaweed Padina pavonica was incorporated as an organic fertilizer of plant growth. Chemical analysis of the aqueous extract of this alga showed the presence of macronutrients such as nitrogen (N), phosphorus (P) and potassium (K) necessary for development and growth of plants. Agar-agar was added as a solidifying agent. A medium containing only soil and another containing soil with chemical fertilizer served as controls. Sunflower seeds grown in medium supplemented with brown seaweed; (P. pavonica + agar (4% or 6%) + L. aegyptica have a growth rate (length and diameter of the stem, number of leaves) that is slower than the plants grown in a medium with a comparable amount of the soil with chemical fertilizer. However, the plants in the soil and others in the soil with chemical fertilizer and the media (seaweed + L. aegyptica + agar 4%) have not completed their growth while the plants grown in the media (seaweed + L. aegyptica + agar 6%) continued to grow. A biodegradability test showed that a piece of support (seaweed + agar 1.5% + L. aegyptica) presented a degradation rate higher than the support with only Luffa and agar 1.5%, while a piece of plastic had not degraded. The results of our study have shown that this support has helped to extend the duration of growth and enhanced the quality of the plants. Ultimately, the fabricated support presented fertilizer properties, water retention and biodegradability and could serve in horticulture as an alternative to plastic pots and chemical fertilizer.

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“…Among Asian-Pacific countries, the major economically important seaweed groups have been used for food and feed (humans and animals), materials for industry, traditional medicine, biofertilizers, and as biofuel (bioethanol, biodiesel) (Hong et al 2007;Phang et al 2010).…”

Section: Resultsmentioning

confidence: 99%

“…Finally, the 10th Malaysian Plan was launched to optimize seaweed production while the 4th National Agriculture Policy (2011-2020) was enacted in order to boost the development of seaweed aquaculture programs in that country (Kaur and Ang 2009). In the period from 2010 to 2015, 900,000 ha of natural seaweed beds with a standing crop of 60-70 × 10 5 t dw y −1 have (2016) been estimated as suitable for exploitation in Vietnam (Hong et al 2007). …”

Section: Sabs In Asian Pacific Countriesmentioning

confidence: 99%

Carbon dioxide mitigation potential of seaweed aquaculture beds (SABs)

et al. 2016

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Seaweed aquaculture beds (SABs) that support the production of seaweed and their diverse products, cover extensive coastal areas, especially in the Asian-Pacific region, and provide many ecosystem services such as nutrient removal and CO 2 assimilation. The use of SABs in potential carbon dioxide (CO 2 ) mitigation efforts has been proposed with commercial seaweed production in China, India, Indonesia, Japan, Malaysia, Philippines, Republic of Korea, Thailand, and Vietnam, and is at a nascent stage in Australia and New Zealand. We attempted to consider the total annual potential of SABs to drawdown and fix anthropogenic CO 2 . In the last decade, seaweed production has increased tremendously in the Asian-Pacific region. In 2014, the total annual production of Asian-Pacific SABs surpassed 2.61 × 10 6 t dw. Total carbon accumulated annually was more than 0.78 × 10 6 t y −1 , equivalent to over 2.87 × 10 6 t CO 2 y −1 . By increasing the area available for SABs, biomass production, carbon accumulation, and CO 2 drawdown can be enhanced. The conversion of biomass to biofuel can reduce the use of fossil fuels and provide additional mitigation of CO 2 emissions. Contributions

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Seaweeds from Vietnam used for functional food, medicine and biofertilizer

Cited by 219 publications

References 19 publications

Agricultural uses of plant biostimulants

Agricultural uses of plant biostimulants

Evaluation of brown seaweed (Padina pavonica) as biostimulant of plant growth and development

Carbon dioxide mitigation potential of seaweed aquaculture beds (SABs)

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