Tropical fruit by-products water extracts as sources of soluble fibres and phenolic compounds with potential antioxidant, anti-inflammatory, and functional properties

Pectin, phenolic compounds and/or Maillard reaction products present in orange by-products may exert an anti-inflammatory bowel effect in DSS-treated mice.

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By-Products of Camu-Camu [Myrciaria dubia (Kunth) McVaugh] as Promising Sources of Bioactive High Added-Value Food Ingredients: Functionalization of Yogurts

Molecules ◽

10.3390/molecules25010070 ◽

2019 ◽

Vol 25 (1) ◽

pp. 70 ◽

Cited By ~ 2

Author(s):

Natália Conceição ◽

Bianca R. Albuquerque ◽

Carla Pereira ◽

Rúbia C. G. Corrêa ◽

Camila B. Lopes ◽

...

Keyword(s):

Chemical Composition ◽

Phenolic Compounds ◽

Food System ◽

Food Additives ◽

Added Value ◽

Phenolic Profile ◽

Food Ingredients ◽

Myrciaria Dubia ◽

By Products ◽

Fruit Part

Camu-camu (Myrciaria dubia (Kunth) McVaugh) is a fruit economically relevant to the Amazon region, mostly consumed in the form of processed pulp. Our aim was to perform an unprecedented comparative study on the chemical composition and bioactivities of the camu-camu pulp and industrial bio-residues (peel and seed), and then the most promising fruit part was further explored as a functionalized ingredient in yogurt. A total of twenty-three phenolic compounds were identified, with myricetin-O-pentoside and cyanindin-3-O-glucoside being the main compounds in peels, followed by p-coumaroyl hexoside in the pulp, and ellagic acid in the seeds. The peel displayed the richest phenolic profile among samples, as well as the most significant antibacterial (MICs = 0.625–10 mg/mL) and anti-proliferative (GI50 = 180 µg/mL against HeLa cells) activities. For this reason, it was selected to be introduced in a food system (yogurt). Taken together, our results suggest the possibility of using the camu-camu peel as a source of food additives.

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Extraction of Phenolic Compounds and Terpenes from Cannabis sativa L. By-Products: From Conventional to Intensified Processes

Antioxidants ◽

10.3390/antiox10060942 ◽

2021 ◽

Vol 10 (6) ◽

pp. 942

Author(s):

Emilie Isidore ◽

Hamza Karim ◽

Irina Ioannou

Keyword(s):

Phenolic Compounds ◽

Cannabis Sativa ◽

Biological Activities ◽

Operating Conditions ◽

Extraction Techniques ◽

Ultrasound Assisted Extraction ◽

Assisted Extraction ◽

Whole Plant ◽

Conventional Solvent Extraction ◽

By Products

Cannabis sativa L. is a controversial crop due to its high tetrahydrocannabinol content varieties; however, the hemp varieties get an increased interest. This paper describes (i) the main categories of phenolic compounds (flavonoids, stilbenoids and lignans) and terpenes (monoterpenes and sesquiterpenes) from C. sativa by-products and their biological activities and (ii) the main extraction techniques for their recovery. It includes not only common techniques such as conventional solvent extraction, and hydrodistillation, but also intensification and emerging techniques such as ultrasound-assisted extraction or supercritical CO2 extraction. The effect of the operating conditions on the yield and composition of these categories of phenolic compounds and terpenes was discussed. A thorough investigation of innovative extraction techniques is indeed crucial for the extraction of phenolic compounds and terpenes from cannabis toward a sustainable industrial valorization of the whole plant.

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Assessment of in-vitro bioaccessibility and antioxidant capacity of phenolic compounds extracts recovered from grapevine bunch stem and cane by-products

Food Chemistry ◽

10.1016/j.foodchem.2021.129063 ◽

2021 ◽

Vol 348 ◽

pp. 129063

Author(s):

Susana Ferreyra ◽

Carolina Torres-Palazzolo ◽

Rubén Bottini ◽

Alejandra Camargo ◽

Ariel Fontana

Keyword(s):

Phenolic Compounds ◽

Antioxidant Capacity ◽

In Vitro Bioaccessibility ◽

By Products

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Anti-Platelet Properties of Apple Must/Skin Yeasts and of Their Fermented Apple Cider Products

Beverages ◽

10.3390/beverages7030054 ◽

2021 ◽

Vol 7 (3) ◽

pp. 54

Author(s):

Donal Moran ◽

Mary Fleming ◽

Eimear Daly ◽

Natasha Gaughan ◽

Ioannis Zabetakis ◽

...

Keyword(s):

Fatty Acids ◽

Platelet Aggregation ◽

Functional Properties ◽

Human Platelet ◽

Omega 3 ◽

Apple Cider ◽

Human Platelet Aggregation ◽

Yeast Strains ◽

Omega 6 ◽

Anti Inflammatory

Alcoholic beverages like apple cider are considered functional beverages with several health benefits, when consumed in moderation, which are mainly attributed to their microbiota and the plethora of their bioactive compounds. Among them, bio-functional polar lipids (PL) have recently been found in apple cider, which despite low quantities, have exhibited strong anti-inflammatory and anti-platelet properties, while fermentation seems to affect the functionality of apple cider’s PL bioactives. The aim of the present study was to elaborate yeast strains isolated from the complex mixtures of apple surface and must yeasts for evaluating their effects on the anti-platelet functional properties of PL bioactives from their final fermented apple cider products. First, bio-functional PL were extracted and separated from the biomass of the different isolated apple surface/must yeast strains, and were further assessed for their anti-platelet potency against human platelet aggregation induced by the potent inflammatory and thrombotic mediator platelet-activating factor (PAF), or by a classic platelet agonist like adenosine diphopshate (ADP). Novel functional apple ciders were then produced from the fermentation of apple juice by elaborating the most bioactive and resilient yeast strains isolated from the apple must with optimum fermentation properties. PL bioactives extracted from these novel apple cider products were also further assessed for their anti-platelet properties against both the PAF and ADP pathways of human platelet aggregation. These novel cider products were found to contain PL bioactives with lower IC50 values (~40 μg) and thus increased anti-platelet potency against platelet aggregation induced by PAF and ADP. GC-MS analysis of the PL bioactives extracted from these novel apple ciders showed that apple cider PL bioactives are rich in monounsaturated fatty acids (MUFA) and polyunsaturated fatty acids (PUFA), such as the omega-6 linoleic acid (LA) and the omega-3 alpha linolenic acid (ALA), with favorably lower levels for their omega-6/omega-3 PUFA ratio, which further support the observed strong anti-platelet properties putative anti-inflammatory potency for the apple cider PL bioactives. However, further studies are needed in order to elucidate and fully characterize the apple yeast strains that can be utilized for increasing the anti-inflammatory, anti-platelet and cardioprotective functional properties of their fermented apple cider products.

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Oriental Hornet (Vespa orientalis) Larval Extracts Induce Antiproliferative, Antioxidant, Anti-Inflammatory, and Anti-Migratory Effects on MCF7 Cells

Molecules ◽

10.3390/molecules26113303 ◽

2021 ◽

Vol 26 (11) ◽

pp. 3303

Author(s):

Amina M. G. Zedan ◽

Mohamed I. Sakran ◽

Omar Bahattab ◽

Yousef M. Hawsawi ◽

Osama Al-Amer ◽

...

Keyword(s):

Phenolic Compounds ◽

Aqueous Extract ◽

Antioxidant Activities ◽

Individual Treatment ◽

Alcoholic Extract ◽

Anticancer Effect ◽

Mcf7 Cells ◽

Vespa Orientalis ◽

Anti Inflammatory

The use of insects as a feasible and useful natural product resource is a novel and promising option in alternative medicine. Several components from insects and their larvae have been found to inhibit molecular pathways in different stages of cancer. This study aimed to analyze the effect of aqueous and alcoholic extracts of Vespa orientalis larvae on breast cancer MCF7 cells and investigate the underlying mechanisms. Our results showed that individual treatment with 5% aqueous or alcoholic larval extract inhibited MCF7 proliferation but had no cytotoxic effect on normal Vero cells. The anticancer effect was mediated through (1) induction of apoptosis, as indicated by increased expression of apoptotic genes (Bax, caspase3, and p53) and decreased expression of the anti-apoptotic gene Bcl2; (2) suppression of intracellular reactive oxygen species; (3) elevation of antioxidant enzymes (CAT, SOD, and GPx) and upregulation of the antioxidant regulator Nrf2 and its downstream target HO-1; (4) inhibition of migration as revealed by in vitro wound healing assay and downregulation of the migration-related gene MMP9 and upregulation of the anti-migratory gene TIMP1; and (5) downregulation of inflammation-related genes (NFκB and IL8). The aqueous extract exhibited the best anticancer effect with higher antioxidant activities but lower anti-inflammatory properties than the alcoholic extract. HPLC analysis revealed the presence of several flavonoids and phenolic compounds with highest concentrations for resveratrol and naringenin in aqueous extract and rosmarinic acid in alcoholic extract. This is the first report to explain the intracellular pathway by which flavonoids and phenolic compounds-rich extracts of Vespa orientalis larvae could induce MCF7 cell viability loss through the initiation of apoptosis, activation of antioxidants, and inhibition of migration and inflammation. Therefore, these extracts could be used as adjuvants for anticancer drugs and as antioxidant and anti-inflammatory agents.

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