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      Bioactive Compounds, Nutritional Traits, and Antioxidant Properties of Artocarpus altilis (Parkinson) Fruits: Exploiting a Potential Functional Food for Food Security on the Comoros Islands

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          Abstract

          Comoros Union presents a considerable biodiversity of food resources that are neglected or still not valorised, as breadfruit. This study aimed to evaluating nutritional and nutraceutical traits of Artocarpus altilis (Parkinson) Fosberg by characterizing its main bioactive compounds, nutritional traits, and antioxidant properties in order to contribute to the development of traditional and innovative uses of this species as functional food (e.g., infant flour). Bioactive compound composition, antioxidant properties, protein and sugar content, lipids, fibre, and macro- and microelements were observed in these fruits after a specific drying process. Breadfruit showed positive nutritional traits. The main identified phenolic groups were cinnamic acids (with a maximum of 51.88 ± 2.63 mg/100 g DW for chlorogenic acid) and tannins. The highest value of antioxidant activity was 6.40 ± 1.02 mmol·Fe 2+/kg DW. This preliminary phytochemical investigation may provide a contribution to the identification and quantification of lead compounds responsible for traditional nutritional and therapeutic claims.

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          A Review on Anti-Inflammatory Activity of Monoterpenes

          Faced with the need to find new anti-inflammatory agents, great effort has been expended on the development of drugs for the treatment of inflammation. This disorder reduces the quality of life and overall average productivity, causing huge financial losses. In this review the anti-inflammatory activity of 32 bioactive monoterpenes found in essential oils is discussed. The data demonstrate the pharmacological potential of this group of natural chemicals to act as anti-inflammatory drugs.
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            Gallic acid-induced lung cancer cell death is related to glutathione depletion as well as reactive oxygen species increase.

            Gallic acid (GA) widely distributed in plants and foods has its various biological effects. Here, we investigated the anti-cancer effects of GA on Calu-6 and A549 lung cancer cells in relation to reactive oxygen species (ROS) and glutathione (GSH). GA dose-dependently decreased the growth of Calu-6 and A549 cells with an IC(50) of approximately 10-50 microM and 100-200 microM GA at 24h, respectively. GA also induced cell death in lung cancer cells, which was accompanied by the loss of mitochondrial membrane potential (MMP; DeltaPsi(m)). The percents of MMP (DeltaPsi(m)) loss and death cells were lower in A549 cells than Calu-6 cells. GA increased ROS levels including O(2)(-) in lung cancer cells at 24h and also GSH depleted cell numbers at this time. N-acetyl-cysteine (NAC; a well-known antioxidant) intensified growth inhibition and death in GA-treated lung cancer cells. NAC changed ROS levels and increased GSH depletion in these cells. Vitamin C significantly attenuated cell death, ROS levels and GSH depletion in GA-treated lung cancer cells. L-buthionine sulfoximine (BSO; an inhibitor of GSH synthesis) slightly enhanced growth inhibition and death in GA-treated lung cancer cells and also mildly increased ROS levels and GSH depletion in these cells. In conclusion, GA inhibited the growth of lung cancer cells. GA-induced lung cancer cell death was related to GSH depletion as well as ROS level changes. Copyright (c) 2010 Elsevier Ltd. All rights reserved.
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              A chlorogenic acid-induced increase in GLP-1 production may mediate the impact of heavy coffee consumption on diabetes risk.

              Recent prospective epidemiology links heavy coffee consumption to a substantial reduction in risk for type 2 diabetes. Yet there is no evidence that coffee improves insulin sensitivity and, at least in acute studies, caffeine has a negative impact in this regard. Thus, it is reasonable to suspect that coffee influences the risk for beta cell "failure" that precipitates diabetes in subjects who are already insulin resistant. Indeed, there is recent evidence that coffee increases production of the incretin hormone glucagon-like peptide-1 (GLP-1), possibly owing to an inhibitory effect of chlorogenic acid (CGA -- the chief polyphenol in coffee) on glucose absorption. GLP-1 acts on beta cells, via cAMP-dependent mechanisms, to promote the synthesis and activity of the transcription factor IDX-1, crucial for maintaining the responsiveness of beta cells to an increase in plasma glucose. Conversely, the "glucolipotoxicity" thought to initiate and sustain beta cell dysfunction in diabetics can suppress expression of this transcription factor. The increased production of GLP-1 associated with frequent coffee consumption could thus be expected to counteract the adverse impact of chronic free fatty acid overexposure on beta cell function in overweight insulin resistant subjects. CGA's putative impact on glucose absorption may reflect the ability of this compound to inhibit glucose-6-phosphate translocase 1, now known to play a role in intestinal glucose transport. Delayed glucose absorption may itself protect beta cells by limiting postprandial hyperglycemia -- though, owing to countervailing effects of caffeine on plasma glucose, and a paucity of relevant research studies, it is still unclear whether coffee ingestion blunts the postprandial rise in plasma glucose. More generally, diets high in "lente carbohydrate", or administration of nutraceuticals/pharmaceuticals which slow the absorption of dietary carbohydrate, should help preserve efficient beta cell function by boosting GLP-1 production, as well as by blunting the glucotoxic impact of postprandial hyperglycemia on beta cell function.
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                Author and article information

                Journal
                Journal of Food Quality
                Journal of Food Quality
                Hindawi Limited
                0146-9428
                1745-4557
                June 24 2018
                June 24 2018
                : 2018
                : 1-11
                Affiliations
                [1 ]Faculté des Sciences et Techniques, Université des Comores, 167 Moroni, Comoros
                [2 ]Laboratoire de Biochimie Appliquée Aux Sciences Médicales-Faculté des Sciences, Université d’Antananarivo, Antananarivo, Madagascar
                [3 ]Dipartimento di Scienze Agrarie, Forestali e Alimentari (DISAFA), Università degli Studi di Torino, Grugliasco, Italy
                [4 ]Département de Biologie et Écologie Végétales (DBEV), Faculté des Sciences, Université d’Antananarivo, Antananarivo, Madagascar
                [5 ]Institut Supérieur de Sciences, Environnement et Développement Durable (ISSEDD), Université de Toamasina, Toamasina, Madagascar
                [6 ]Dipartimento di Scienze della Vita e Biologia dei Sistemi (DBIOS), Università degli Studi di Torino, Torino, Italy
                Article
                10.1155/2018/5697928
                ac82abe2-af02-4eb6-b75e-657c1ffb79fd
                © 2018

                http://creativecommons.org/licenses/by/4.0/

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