Seaweed as a protein source for mono-gastric livestock

Angell, Alex R.; Angell, Simon F.; Nys, Rocky de; Paul, Nicholas A.

doi:10.1016/j.tifs.2016.05.014

Cited by 66 publications

(50 citation statements)

References 85 publications

(86 reference statements)

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“…This is in contrast to mono-gastric animals, for which it has been suggested that some form of prior processing may be required in order for animals (and humans) to utilise algal proteins more efficiently [164]. Cattle will preferentially drink water containing 20% suspended Spirulina , increasing their daily water intake by 24.8 g/kg [165].…”

Section: Applicationsmentioning

confidence: 99%

Algal Proteins: Extraction, Application, and Challenges Concerning Production

Bleakley

Hayes

2017

Foods

652

418

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Population growth combined with increasingly limited resources of arable land and fresh water has resulted in a need for alternative protein sources. Macroalgae (seaweed) and microalgae are examples of under-exploited “crops”. Algae do not compete with traditional food crops for space and resources. This review details the characteristics of commonly consumed algae, as well as their potential for use as a protein source based on their protein quality, amino acid composition, and digestibility. Protein extraction methods applied to algae to date, including enzymatic hydrolysis, physical processes, and chemical extraction and novel methods such as ultrasound-assisted extraction, pulsed electric field, and microwave-assisted extraction are discussed. Moreover, existing protein enrichment methods used in the dairy industry and the potential of these methods to generate high value ingredients from algae, such as bioactive peptides and functional ingredients are discussed. Applications of algae in human nutrition, animal feed, and aquaculture are examined.

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Section: Applicationsmentioning

confidence: 99%

Algal Proteins: Extraction, Application, and Challenges Concerning Production

Bleakley

Hayes

2017

Foods

652

418

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“…Many species have an essential amino acid (EAA) to total AA (TAA) ratio of > 450 g EAA kg −1 of TAA . A comparison of the average relative proportions of EAA in fishmeal, soybean meal, and brown, green, and red macroalgae is presented in Fig.…”

Section: Chemical Composition Of Macroalgaementioning

confidence: 99%

“…Increasing competition for land, water and energy, and fully exploited capture fisheries emphasize the urgent need for sustainable feed ingredients developed from under‐utilized renewable natural resources that do not compete with human food. The use of different marine macroalgae (seaweed) as a supplementary feed resource in animal production has a long history . The advantages over terrestrial biomass include high growth rate, potential cultivation in saltwater, and no requirements for arable land or industrial fertilization.…”

Section: Introductionmentioning

confidence: 99%

Marine macroalgae as sources of protein and bioactive compounds in feed for monogastric animals

2018

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Marine macroalgae are considered as promising sustainable alternatives to conventional terrestrial animal feed resources. The advantages include high growth rate, potential cultivation in saltwater, and no occupation of arable land. Macroalgae are broadly classified as brown (Phaeophyta), red (Rhodophyta) and green (Chlorophyta) algae, and are a diverse group of marine organisms. The nutritional value of macroalgae is highly variable. The protein and essential amino acid content can be low, especially in brown species, and indigestible polysaccharides adversely affect the energy value. Optimal use of macroalgae in feeds requires suitable processing, and biorefinery approaches may increase protein content and improve nutrient availability. Macroalgae are rich in unique bioactive components and there is a growing interest in the potentially beneficial health effects of compounds such as laminarin and fucoidan in different macroalgal and macroalgal products. This review summarizes current literature on different aspects of the use of macroalgae as sources of protein and health-promoting bioactive compounds in feed for monogastric animal species.

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“…The amount of seaweed produced on the island of Ireland is shown in Table . These marine plants contain a wide range of interesting natural products, such as bioactive phenolic compounds, unsaturated fatty acids, alginate and biopolymers . Seaweed supplemented animal feeds offer nutritionally rich renewable feedstocks with several positive attributes to livestock health .…”

Section: Introductionmentioning

confidence: 99%

A critical review of analytical methods used for the chemical characterisation and quantification of phlorotannin compounds in brown seaweeds

Ford

Theodoridou

Sheldrake

et al. 2019

Phytochemical Analysis

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IntroductionPhlorotannins, the phenolic compounds found in brown seaweeds, are a unique and diverse class of compounds showing a huge potential for food and pharmaceutical applications.ObjectiveThis review will give an account of the colorimetric assays used and a discussion of their quantitative and qualitative analytical shortcomings. It will also discuss other more complex and modern analytical chemistry methods that are currently being developed to study phlorotannins. The purpose of this review is to increase awareness of these bioactive compounds and promote further development of robust analytical methods for use in biology, food science, pharmacology and biomedical and cosmeceutical sciences.ResultsWhilst the biological activity and huge commercial potential of the phlorotannins has been widely reported throughout the literature, the chemical structures and reactivity of these compounds is still not well understood. The phlorotannin content of seaweed is usually characterised using colorimetric assays. However, although these methods give a reasonable overall estimation of the total phenolic content, they lack precision and specificity.ConclusionThis review highlights the strengths and weaknesses of commonly used colorimetric assays. Novel techniques are highlighted using more selective chemistry to identify this class of compounds.

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Seaweed as a protein source for mono-gastric livestock

Cited by 66 publications

References 85 publications

Algal Proteins: Extraction, Application, and Challenges Concerning Production

Algal Proteins: Extraction, Application, and Challenges Concerning Production

Marine macroalgae as sources of protein and bioactive compounds in feed for monogastric animals

A critical review of analytical methods used for the chemical characterisation and quantification of phlorotannin compounds in brown seaweeds

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