Natural food additives as green catalysts in organic synthesis: a review

Ruslan, Nur Aimi Aqilah Ahmad; Kan, Su‐Yin; Hamzah, Ahmad Sazali; Chia, Poh Wai

doi:10.1007/s10311-021-01209-8

Cited by 17 publications

(8 citation statements)

References 84 publications

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“…Namely, foods or their ingredients can be considered functional foods or ingredients when they beneficially affect sufficiently proven one or more target functions in the body beyond their basic nutritional function in a way that is relevant to either reduction of the risk of disease and/or improving the health state and well-being (Ahmad Ruslan et al 2021;O'Sullivan et al 2016;Shahidi 2009;Sridhar et al 2021b). In recent years, natural functional ingredients have attracted the great attention of many food scientists to produce functional foods that can improve health and wellness circles (Rashwan et al 2020;Rashwan et al 2021).…”

Section: Natural Functional Ingredientsmentioning

confidence: 99%

Natural nutraceuticals for enhancing yogurt properties: a review

2023

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Yogurt is a major fermented milk product providing probiotics, lactic acid bacteria, vitamins, calcium, and proteins, yet health-beneficial phenolics, flavonoids, anthocyanins, and iron are absent in plain yogurt. These compounds could provide antidiabetic, antiobesity, antimicrobial, and anticancer properties. Here, we review the effect of adding natural functional ingredients in dairy and non-dairy yogurts, with focus on the properties and biological activity of functional yogurts. Properties include color, pH, acidity, water-holding capacity, syneresis, viscosity, structure, fats, microbiology, and flavor. Biological activities comprise antioxidant, antidiabetic, antiobesity, anti-inflammatory, cardioprotective, antibacterial, and anticancer. We found that yogurt from plant-based milk, such as common bean and soy milk, and the addition of functional ingredients, enhanced biological activities of yogurts and improved properties. Functional ingredients provide polysaccharides, phenolics, flavonoids, anthocyanins, and amino acids. Functional ingredients are both natural stabilizers and texturizing materials. The incorporation of functional ingredients improved the contents of phenolics and flavonoids by 96.52 and 97.72%, respectively, increased water-holding capacity by 20–25%, and improved the number of viable cells of lactic acid bacteria. Incorporation reduced syneresis by 15–32% and decreased the loss of fat globules. Moreover, apparent viscosity, texture, microstructure, and sensory properties were enhanced. Biological activities strongly increased, especially antioxidants, which increased from 4.88 to 15.03 mg trolox equivalent per 100 g of yogurt.

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Section: Natural Functional Ingredientsmentioning

confidence: 99%

Natural nutraceuticals for enhancing yogurt properties: a review

2023

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“…Environmentally benign synthetic strategies are mainly possible due to the vital role of catalysts in lowering the activation energy, due to which reactions are possible at low heat energy or at room temperature and products are achieved in good-to-excellent yields by generating fever co-products, by-products and other waste substances. Catalysis is the pillar of green chemistry, and catalysts used in the green organic synthesis must be safe, easy to handle, reusable, biodegradable and cost-effective, recyclable, recovered efficiently and display a high reaction rate to afford products in maximum yields with shorter time duration and different types of green catalysts is depicted in Table 1 [42][43][44][45][46].…”

Section: Green Catalysts In Organic Synthetic Approachesmentioning

confidence: 99%

“…HPAs can be designed in homogeneous and heterogeneous systems such as Amberlyst-15, PCPs-SO [46][47][48][49][50][51][52][53][54][55][56][57][58][59][60][61][62].…”

Section: Heteropoly Acid-based (Hpas) Catalysismentioning

confidence: 99%

Green Chemistry in Organic Synthesis: Recent Update on Green Catalytic Approaches in Synthesis of 1,2,4-Thiadiazoles

et al. 2022

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Green (sustainable) chemistry provides a framework for chemists, pharmacists, medicinal chemists and chemical engineers to design processes, protocols and synthetic methodologies to make their contribution to the broad spectrum of global sustainability. Green synthetic conditions, especially catalysis, are the pillar of green chemistry. Green chemistry principles help synthetic chemists overcome the problems of conventional synthesis, such as slow reaction rates, unhealthy solvents and catalysts and the long duration of reaction completion time, and envision solutions by developing environmentally benign catalysts, green solvents, use of microwave and ultrasonic radiations, solvent-free, grinding and chemo-mechanical approaches. 1,2,4-thiadiazole is a privileged structural motif that belongs to the class of nitrogen–sulfur-containing heterocycles with diverse medicinal and pharmaceutical applications. This comprehensive review systemizes types of green solvents, green catalysts, ideal green organic synthesis characteristics and the green synthetic approaches, such as microwave irradiation, ultrasound, ionic liquids, solvent-free, metal-free conditions, green solvents and heterogeneous catalysis to construct different 1,2,4-thiadiazoles scaffolds.

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“…The catalyst is both a reactant and product of the reaction ” [ 4 ]. Catalytic approaches have been applied in several areas of chemistry, such as biofuel production [ 5 ], small organic molecules of interest [ 6 ], organic synthesis [ 7 ], sensor production [ 8 ], depollution [ 9 ], pharmaceutics [ 10 ] and many more [ 11 , 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

Catalytic Approaches to Multicomponent Reactions: A Critical Review and Perspectives on the Roles of Catalysis

2021

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In this review, we comprehensively describe catalyzed multicomponent reactions (MCRs) and the multiple roles of catalysis combined with key parameters to perform these transformations. Besides improving yields and shortening reaction times, catalysis is vital to achieving greener protocols and to furthering the MCR field of research. Considering that MCRs typically have two or more possible reaction pathways to explain the transformation, catalysis is essential for selecting a reaction route and avoiding byproduct formation. Key parameters, such as temperature, catalyst amounts and reagent quantities, were analyzed. Solvent effects, which are likely the most neglected topic in MCRs, as well as their combined roles with catalysis, are critically discussed. Stereocontrolled MCRs, rarely observed without the presence of a catalytic system, are also presented and discussed in this review. Perspectives on the use of catalytic systems for improved and greener MCRs are finally presented.

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Natural food additives as green catalysts in organic synthesis: a review

Cited by 17 publications

References 84 publications

Natural nutraceuticals for enhancing yogurt properties: a review

Natural nutraceuticals for enhancing yogurt properties: a review

Green Chemistry in Organic Synthesis: Recent Update on Green Catalytic Approaches in Synthesis of 1,2,4-Thiadiazoles

Catalytic Approaches to Multicomponent Reactions: A Critical Review and Perspectives on the Roles of Catalysis

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