Determination of carbohydrates in honey and milk by capillary electrophoresis in combination with graphene–cobalt microsphere hybrid paste electrodes

Liang, Peipei; Sun, Motao; He, Ping; Zhang, Luyan; Chen, Gang

doi:10.1016/j.foodchem.2015.05.059

Cited by 23 publications

(14 citation statements)

References 33 publications

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“…The chemical profiles of natural extracts obtained from a complex organic matrix, such as pollen or honey, have traditionally been determined through chromatographic techniques (e.g., HPLC, FTIR, HPLC-UV, and HPLC-MS) (Dominguez et al, 2016;Liang et al, 2016). Nevertheless, capillary electrophoresis (CE) and related techniques, such as electrokinetic chromatography, are interesting alternatives because they possess several advantages, including decreased analysis time, high separation efficiency, ultra-small sample volume, and low reagent consumption (Arráez-Román et al, 2006;Moreno-González et al, 2015;Nicolaou and Kapnissi-Christodoulou, 2010;Rizelio et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Characterization of phenolic profile alterations in metal-polluted bee pollen via capillary electrophoresis

Mejías

Gómez²,

Gareil

et al. 2018

Ciencia e investigación agraria

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E. Mejías, C.J. Gómez, P. Gareil, N. Delaunay, and G. Montenegro. 2018. Characterization of phenolic profile alterations in metal-polluted bee pollen via capillary electrophoresis. Cien. Inv. Agr. 45(1): 51-63. Bee pollen is a conglomerate of plant pollens, and its nutritional contents include bioactive compounds with antioxidant/antiradical potentials. These potentials are conditioned by botanical origin. In Chile, the native flora is diverse and promising in terms of bioactive compounds, but many plants grow in metal-polluted areas. The associated bioaccumulation could negatively affect the antioxidant/antiradical abilities of bee pollen. To assess the relationship between the bioaccumulation of metals and the antioxidant activity of pollen, complete bee pollen was collected near and far from the Llaima Volcano, albeit in ranges that ensured the same botanical origins. Mellisopalynological analysis determined Escallonia rubra pollen was the most abundant native flora in complete bee pollen. Therefore, E. rubra pollen collected near and far from the Llaima Volcano was evaluated for the following: phenolic compounds via colorimetric assays; antioxidant activity via ferric reducing/antioxidant power assays; antiradical activity via 1,1-diphenyl-2-picrylhydrazyl radical assays; and metal contents via inductively coupled plasma optical emission spectrometry. Llaima samples had higher Cu and Fe but lower Mn contents and lower antioxidant and antiradical capacities than did the control samples. These results were supported by subsequent fortification assays in Llaima E. rubra samples. In fortified samples with significantly higher metal contents, antiradical and antioxidant abilities decreased. Moreover, shifts in migration times were found for naringenin, rutine, and caffeic acid after capillary electrophoresis (CE) analysis in fortified samples. In conclusion, the results indicated an inverse correlation between metal contents and antioxidant/ antiradical potentials in bee pollen.

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Section: Introductionmentioning

confidence: 99%

Characterization of phenolic profile alterations in metal-polluted bee pollen via capillary electrophoresis

Mejías

Gómez²,

Gareil

et al. 2018

Ciencia e investigación agraria

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“…The resulting solution was vacuum-filtered and subjected to capillary electrophoresis (CE; Liang et al 2016).…”

Section: Determination Of Total Carbohydrate Contentsmentioning

confidence: 99%

The influence of vegetable puree containing carotenoids on the nutrient composition and structure of milk yoghurt

Guz

Novitskaya

Каленик

et al. 2017

Int J of Dairy Tech

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The aim of this study was to develop technology to produce a mashed pumpkin yoghurt rich in b-carotene and to check its physicochemical properties and nutritional values. The structural and mechanical properties of the yoghurt product, as well its basic nutrient content and antioxidant activity, were studied. Yoghurt fortified with pumpkin puree has the potential to normalise the commensal intestinal microbiota and has potential as a dietary health supplement. The experimental yoghurt samples that were produced had physicochemical properties comparable to commercially produced yoghurt: the pumpkin-supplemented samples contained 4.5% fibre, 8.5 mg/100 g vitamin C and 8.9 mg/100 g b-carotene.Keywords Raw vegetables, Pumpkin, Yoghurt, Micronutrients, b-carotene, Fibre. INTRODUCTIONDairy products are very nutritious and valuable because they contain essential micronutrients. In modern society, yoghurt is quite popular and many products contain a wide range of additives, thus offering consumers a wide choice. An integral part of most yoghurts is the presence of live lactic acid bacteria, which have the potential to contribute beneficially to gastrointestinal health. Raw vegetables rich in complex macro-and micronutrients and fibre cleanse the human body and normalise the fluid balance (Sutton et al. 2014). Regular consumption of vegetables helps to prevent various diseases (Bhat and Al-Daihan 2014;Kao et al. 2014). Despite their usefulness as vegetable fillers, a number of yoghurt additives especially fruits and berries have not found broad applications in food products (Miranda et al. 2011). To improve product quality, it is better to use natural sources of vitamins, such as raw vegetables or fruits as additives, as these are easily available due to the wide range of agricultural produce worldwide.The use of raw vegetables materials as additives to food products is gaining prominence.Creating a functional food with plant ingredients will not only meet human needs in terms of basic nutrients and energy but also enrich the active ingredients present in such foods (Ivanov and Rashevskaya 2011). Pumpkin belongs to a healthy and functional food group that is rich in phenolic compounds (flavonoids and phenolic acids), carotenoids and vitamins. The low energy value of pumpkin-based diets may help to reduce blood glucose levels, thus potentially offering antidiabetic properties for products containing pumpkin (Jin et al. 2013). Consumption of carotenoids has been shown to reduce the risk of degenerative and cardiovascular diseases, cataracts and macular degeneration, and also helps to prevent some types of cancer (Provesi et al. 2011).Pumpkin also contains a number of macroand microelements (Rakcejeva et al. 2011), as well as dietary fibre, that can help to reduce the risk of coronary heart disease, provide optimal digestion and reduce the risk of cancer of the cardiovascular and the digestive systems. Another ingredient found in pumpkin, pectin, has been reported to protect the mucous membrane of the gastrointestinal tract...

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“…GP was mixed with CuNPs to create a composite by chemical reduction to detect carbohydrates in food samples, bovine milk, and extracts from honey, peach, and banana, showing excellent agreement with the carbohydrate content labeled and good repeatability RSD ≤ 3.5 % ( n = 3) in all samples . Other metallic nanostructures such as cobalt microspheres (CoMSs) have also been used to create hybrid materials with GP for a similar application, measuring carbohydrates in honey and milk samples .…”

Section: Metallic Nanostructures In Ce and Mementioning

confidence: 99%

“…SEM image of carbon metal nanostructured hybrids. (A) CNT–CuNP, (B, C) CNT–NiNP, (D) GP–CuNPs, (E) GP–NiNPs, and (F) GP–CoMSs composite (reprinted with permission of ).…”

Section: Metallic Nanostructures In Ce and Mementioning

confidence: 99%

Electrochemical detectors based on carbon and metallic nanostructures in capillary and microchip electrophoresis

et al. 2016

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Carbon and metallic-based nanostructures have been progressively implemented as innovative electrochemical detectors in CE and microchip electrophoresis (ME). For both type of nanomaterials and toward selected examples, this review details the impact of these nanomaterials for enhanced detection performance in CE, ME, and paper-based microfluidic devices. The analytical performance and the analytical potential in real world applications is also presented and discussed.

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Determination of carbohydrates in honey and milk by capillary electrophoresis in combination with graphene–cobalt microsphere hybrid paste electrodes

Cited by 23 publications

References 33 publications

Characterization of phenolic profile alterations in metal-polluted bee pollen via capillary electrophoresis

Characterization of phenolic profile alterations in metal-polluted bee pollen via capillary electrophoresis

The influence of vegetable puree containing carotenoids on the nutrient composition and structure of milk yoghurt

Electrochemical detectors based on carbon and metallic nanostructures in capillary and microchip electrophoresis

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