Fortification of Chlorella vulgaris with citrus peel amino acid for improvement biomass and protein quality

Koochi, Zhila Heydari; Jahromi, Kourosh Ghodrat; Kavoosi, Gholamreza; Ramezanian, Asghar

doi:10.1016/j.btre.2023.e00806

Cited by 7 publications

(1 citation statement)

References 26 publications

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“…A higher content was found in pomegranate seeds (14%) [134]. Some authors report different amino acid content in food by-products: citrus peel is a rich source of alanine, asparagine, aspartate, alanine, arginine, proline and serine [135]. Authors [105] used high-voltage electrical discharge (HVED) in combination with a DES, which was proven to be very effective for the extraction of proteins and polyphenols from pomegranate seeds.…”

Section: Proteinsmentioning

confidence: 99%

Potential of Deep Eutectic Solvents in the Extraction of Organic Compounds from Food Industry By-Products and Agro-Industrial Waste

Molnar,

Gašo-Sokač,

Komar

et al. 2024

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Global food waste has a huge impact on the environment, as it is a source of greenhouse gas emissions and wasted natural resources. Across the world, over 30% of food is lost or wasted each year. Aside from this, the food industry, as well, is one of the biggest sources of agro-industrial waste and by-products, which can be valorized and used for different purposes. Such waste is a good source of bioactive organic compounds that can be extracted without altering their properties, where deep eutectic solvents can serve as green solvents and as an excellent replacement for volatile organic solvents. Isolated compounds can be used in innovative food production, chemical production, cosmetics and other industries. Deep eutectic solvents have attracted extraordinary attention due to their advantages such as environmental friendliness, availability and easy preparation, easy handling and utilization of non-toxic components for their formation. Due to these properties, they are a greener alternative to classic organic solvents for many processes, including extractions. In this paper, we review the utilization of deep eutectic solvents as potential green media for the extraction of organic compounds such as polyphenols, carbohydrates, proteins and alkaloids from by-products of the food industry and from agro-industrial waste.

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Section: Proteinsmentioning

confidence: 99%

Potential of Deep Eutectic Solvents in the Extraction of Organic Compounds from Food Industry By-Products and Agro-Industrial Waste

Molnar,

Gašo-Sokač,

Komar

et al. 2024

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Chemical composition, functional properties, physico‐chemical properties, and techno‐functional characteristics of Satureja protein hydrolysate stabilized in a gelatin matrix

Obeidnejad,

Kavoosi,

Saharkhiz

et al. 2024

Food Science & Nutrition

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The current evaluation was conducted to investigate the chemical composition and functional properties of protein hydrolysates from different Satureja species. The major amino acids (mg/100 g protein) in the protein from different Satureja species were arginine (6.06–14.37), asparagine (1.39–17.06), glutamine (2.42–11.60), glutamic acid (6.34–9.32), beta‐aminoisobutyric acid (3.31–10.29), alanine (4.64–9.59), aspartic acid (5.73–9.54), proline (4.25–8.14), leucine (3.63–5.69), serine (2.64–4.83), lysine (1.89–4.56), glycine (0.96–5.27), valine (2.76–4.83), and phenylalanine (2.86–3.75). Protein hydrolysates from Satureja species exhibited comparable antioxidant activity (IC50 = 0.270–0.328 mg/mL), anti‐linoleic acid oxidation (IC50 = 0.231–0.301 mg/mL), anti‐lecithin oxidation (IC50 = 0.198–0.258 mg/mL), anti‐starch oxidation (IC50 = 0.201–0.277 mg/mL), anti‐amylase activity (IC50 = 0.314–0.337 mg/mL), and anti‐lipase activity (IC50 = 0.309–0.369 mg/mL). The physico‐chemical properties of gelatin dispersion were electrical conductivity (1197 microsiemens/cm), osmolarity (190 milliosmol/kg), surface tension (45 mN/m), particle size (179 nm), zeta potential (−48 mV), and viscosity (4.92 mPa.s). Techno‐functional characteristics of freeze‐dried gelatin particles were as follows: water content (7.68%), water solubility (84.57%), water swelling (151.33%), hygroscopicity (38.20%), hydrophobicity (6.50 μg/g), emulsification activity (68.54%), emulsification stability (57.86%), foam expansion activity (56.08%), foam stability (41.84%), oil‐holding capacity (1.96 g/g), and water‐holding capacity (4.45 g/g). Protein hydrolysate causes minor changes in the physico‐chemical and techno‐functional properties of gelatin. The current investigation introduces Satureja protein hydrolysate as a possible functional and techno‐functional ingredient for bioactive food products for treating diabetes and oxidative stress and as a natural preservative for the food industry.

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Valorization of Monoraphidium sp. microalgal biomass for human nutrition applications

Georgiou,

Exarhopoulos,

Charisis

et al. 2024

J Appl Phycol

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The green microalga Monoraphidium sp. has potential for biodiesel production since it grows fast and can accumulate high levels of lipids. However, there is a lack of information on the potential use in human nutrition. In this work Monoraphidium sp. was characterized in terms of macronutrients with a special focus on the fatty acid profile of the lipid fraction and on the amino acid profile of the proteins. Furthermore, aiming at nutrient valorization, various methods for lipid extraction that could be used in the production of high quality and safe foods were investigated. To this end, the focus was on cell disruption methods in order to optimize oil recovery. The Monoraphidium sp. biomass had a high protein concentration (44.5 %) and a relatively low lipid concentration (12.5 %) but was rich in ω-3 fatty acids demonstrating its high nutritive value. Regarding cell disruption, ultrasonication and high-speed homogenization were insufficient to disrupt cells under the conditions examined. On the other hand, the effectiveness of the ball milling was regulated via processing time and water-to-biomass ratio and complete cell disruption could be achieved by this method. For lipid extraction, solvent extraction using a mixture of food-grade hexane and ethanol resulted in an oil recovery of 70.4 %, whereas using ethanol alone as an environmentally friendly solvent resulted in an oil recovery equal to 54 %. Supercritical CO2 extraction resulted in a lower oil recovery (25 %), whereas ethanol addition, as a cosolvent to CO2, significantly increased the oil recovery (60 %).

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Fortification of Chlorella vulgaris with citrus peel amino acid for improvement biomass and protein quality

Cited by 7 publications

References 26 publications

Potential of Deep Eutectic Solvents in the Extraction of Organic Compounds from Food Industry By-Products and Agro-Industrial Waste

Potential of Deep Eutectic Solvents in the Extraction of Organic Compounds from Food Industry By-Products and Agro-Industrial Waste

Chemical composition, functional properties, physico‐chemical properties, and techno‐functional characteristics of Satureja protein hydrolysate stabilized in a gelatin matrix

Valorization of Monoraphidium sp. microalgal biomass for human nutrition applications

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