Maximization of the recovery of phenolic compounds from sugar maple leaves

Yeasmen, Nushrat; Orsat, Valérie

doi:10.1007/s13399-022-02904-4

Cited by 4 publications

(5 citation statements)

References 49 publications

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“…Extraction is one of the most important phenomena for liberating various bioactive phytochemicals from plant tissues. These phytochemicals may act as antioxidant, anticancerous and antibacterial agents [40][41]. The comparison of extract yield for different solvents has been presented in figure 1.…”

Section: Extract Yieldmentioning

confidence: 99%

Bioactivities of Cholistani harmal (Peganum harmala) with exploration of bioactive phytochemicals

Kamran,

ud Din,

Sahu

et al. 2024

Int J Chem Biochem Sci

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Most plant secondary metabolites serving as bioactive compounds, help to promote human health. The current project was designed to investigate medicinal attributes of P. harmala collected from Cholistan desert. Qualitative analysis exhibited high concentrations of alkaloids and flavonoids. Leaves were extracted with different solvents like water, ethanol, acetone, chloroform and n-hexane; all these extracts were subjected to analysis of bioactivities; and their synergistic effect was also investigated. Among various extracts, n-hexane extract and synergistic mixture exhibited quite high values of phenolic contents and other bioactivities. Finally, the bioactive compounds were characterized by RP-HPLC analysis. Synergistic mixture of these extracts exhibited highest phenolic contents (311.56±3.01 mg GAE/g), followed by n-hexane extract (368.45±3.12 mg GAE/g). n-Hexane extract and synergistic mixture exhibited highest DPPH free radical scavenging (89.25±0.88% for n-hexane and 90.25±0.92% for synergistic mixture), inhibition of linoleic acid peroxidation (72.23±0.45% for n-hexane and 80.12±0.68% for synergistic mixture) and β-carotene bleaching potential (78.35±0.65% for n-hexane and 82.42±0.48 % for synergistic mixture). Moreover, antibacterial activity was evaluated by disc diffusion and cytotoxicity by haemolytic assay. Synergistic mixture (27.2±0.2mm against B. fastidiosus; 22.1±0.1mm against E. coli) and n-hexane extract showed highest antibacterial (25.1±0.3mm against B. fastidiosus; 20.6±0.2mm against E. coli). Lowest cytotoxicity was obtained for n-hexane extract (3.25±0.02%) and synergistic mixture (2.65±0.02%) which recommended their usage in medicinal formulations. HPLC analysis of synergistic mixture of all P. harmala extracts exhibited the presence of seventeen bioactive compounds. Thus, P. harmala leaves can be very effectively used for treatment of numerous diseases.

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Section: Extract Yieldmentioning

confidence: 99%

Bioactivities of Cholistani harmal (Peganum harmala) with exploration of bioactive phytochemicals

Kamran,

ud Din,

Sahu

et al. 2024

Int J Chem Biochem Sci

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“…• leaves are a sustainable source where overexploitation is believed not to be an issue as leaves can be easily grown back by the plant [26,27].…”

Section: Promising Biomass As a Part Of Bio-refinery Approachmentioning

confidence: 99%

“…In addition, drying can modify the physical microstructure of plant tissues, which leads to increased extraction yields [35]. For example, freeze drying causes significant changes in the microstructure of the final dried product making it more porous so that solvents can easily penetrate the sample and thus extract more phytochemicals [36][37][38][39]. Several drying methods have been practiced with leaves aiming for extraction of phenolic compounds such as freeze drying [40][41][42][43][44][45][46][47], microwave drying [34,40,42,44,[48][49][50], oven drying [41,44,49], spray drying [51], sun drying [40,42,44], vacuum drying [40], shade drying [43], among others.…”

Section: Leaves Commercializationmentioning

confidence: 99%

“…Phenolic compounds are considered as antioxidants due to the donation of a hydrogen atom and/or an electron to free radicals, causing the break of chain reaction of oxidation. The antioxidant effect depends on the number and position of the hydroxyl groups [27]. Other important bioactivities for maintaining good health have also been associated with these compounds, e.g., anti-inflammatory, antimicrobial, and anti-proliferative activities, and these biological activities have aroused interest in the use of these molecules in the formulation of nutraceutical products [28].…”

Section: Marketing Strategy Of Phenol Rich Leaves Extractmentioning

confidence: 99%

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A Review on the Biorefinery Approach and Marketing Strategy of Leafy Biomass

Yeasmen,

Bhuiyan,

Orsat

2023

Preprint

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In terms of sustainability, there is a pressing need to evaluate agricultural and forestry leafy biomass that has no current economic value or may pose a threat to the environment. In this aspect, leafy biomass, which represents around 5% of the total tree, can be used for purposes that would be more profitable and ecofriendly. To this end, biorefinery of leafy biomass in the way of extracting valuable health compounds such as phenolics would ensure a valuable societal health ingredient besides alleviating waste disposal problem. However, during the biorefinery process, the primary challenges start with ensuring the feedstock to produce phenol rich leaves extract followed by their isolation and commercialization of this leaves extract. This current review aims to detail the types of biomasses, biorefinery approach of leafy biomass towards the phenolic extraction, leaves commercialization followed by the marketing strategy of the application of phenol rich leaves extract. The outcome of this overview will serve researchers and relevant industries in understanding the process for feedstock collection and the suitable sectors to apply leafy biomass derived healthy compounds.

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“…These qualities can be used to stabilize the catechins when added to foods. Due to their strong antioxidative properties because of hydroxyl groups in their structure, the catechins can scavenge reactive oxygen species (ROS), including superoxide radicals, nitric acid, hydroxyl radicals, peroxynitrite, singlet oxygen, and nitrogen dioxide, all contributing important roles in carcinogenesis [ 48 ]. The scavenging ability of hydroxyl radical (HO) declines in order of ECG, EC, EGCG, and EGC [ 49 ].…”

Section: Catechins: Biosynthesis and Mechanism Of Actionmentioning

confidence: 99%

Green Tea Catechins Attenuate Neurodegenerative Diseases and Cognitive Deficits

et al. 2022

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Neurodegenerative diseases exert an overwhelming socioeconomic burden all around the globe. They are mainly characterized by modified protein accumulation that might trigger various biological responses, including oxidative stress, inflammation, regulation of signaling pathways, and excitotoxicity. These disorders have been widely studied during the last decade in the hopes of developing symptom-oriented therapeutics. However, no definitive cure has yet been discovered. Tea is one of the world’s most popular beverages. The same plant, Camellia Sinensis (L.).O. Kuntze, is used to make green, black, and oolong teas. Green tea has been most thoroughly studied because of its anti-cancer, anti-obesity, antidiabetic, anti-inflammatory, and neuroprotective properties. The beneficial effect of consumption of tea on neurodegenerative disorders has been reported in several human interventional and observational studies. The polyphenolic compounds found in green tea, known as catechins, have been demonstrated to have many therapeutic effects. They can help in preventing and, somehow, treating neurodegenerative diseases. Catechins show anti-inflammatory as well as antioxidant effects via blocking cytokines’ excessive production and inflammatory pathways, as well as chelating metal ions and free radical scavenging. They may inhibit tau protein phosphorylation, amyloid beta aggregation, and release of apoptotic proteins. They can also lower alpha-synuclein levels and boost dopamine levels. All these factors have the potential to affect neurodegenerative disorders. This review will examine catechins’ neuroprotective effects by highlighting their biological, pharmacological, antioxidant, and metal chelation abilities, with a focus on their ability to activate diverse cellular pathways in the brain. This review also points out the mechanisms of catechins in various neurodegenerative and cognitive diseases, including Alzheimer’s, Parkinson’s, multiple sclerosis, and cognitive deficit.

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Maximization of the recovery of phenolic compounds from sugar maple leaves

Cited by 4 publications

References 49 publications

Bioactivities of Cholistani harmal (Peganum harmala) with exploration of bioactive phytochemicals

Bioactivities of Cholistani harmal (Peganum harmala) with exploration of bioactive phytochemicals

A Review on the Biorefinery Approach and Marketing Strategy of Leafy Biomass

Green Tea Catechins Attenuate Neurodegenerative Diseases and Cognitive Deficits

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