Latest News on Carbohydrates: March – 2020

Zone Electrophoresis of Carbohydrates

This chapter discusses the zone electrophoresis of carbohydrates. In zone electrophoresis, the conducting solution and the migrating substances are supported on a solid matrix. [1]

Determination of carbohydrates in foods II.—Unavailable carbohydrates

A fractionation and analytical procedure is described for the measurement of the unavailable carbohydrates in foods. The scheme provides values for water‐soluble polysaccharides, hemicellulose, cellulose and lignin. Tests used to investigate the reliability of the methods are reported and the results obtained with a range of foodstuffs are presented. From the results obtained it is possible to derive values for the composition of the cell‐wall material of these foods. The results are in agreement with more detailed studies of the composition of the cell walls of plants. [2]

Carbohydrates for training and competition

An athlete’s carbohydrate intake can be judged by whether total daily intake and the timing of consumption in relation to exercise maintain adequate carbohydrate substrate for the muscle and central nervous system (“high carbohydrate availability”) or whether carbohydrate fuel sources are limiting for the daily exercise programme (“low carbohydrate availability”). [3]

Comparison of Carbohydrate Structures and Immunomodulating Properties of Extracts from Berries and Flowers of Sambucus nigra L.

Aims: To investigate if the immunomodulating activity of compounds present in berries and flowers of S. nigra were of the same order, or different, and also if the most active components were of high or low molecular weight nature [4]

Impacts of Elevated CO2 on Growth, Carbohydrate Assimilation and Nutrient Uptake of Elaeis guineesis Jacq Seedlings

Aims: This study was conducted to characterize the growth patterns of tenera oil palm seedlings performance (Deli AVROS) under elevated CO2, that is expected to increase in the future due to climate change. Study Design: The palms were exposed to three carbon enrichment treatments: (1) ambient CO2 (400 ppm); (2) twice ambient CO2 (800 ppm), and (3) thrice ambient CO2 (1200 ppm). Randomized complete block design (RCBD) with three replications was used during the experiment using Deli AVROS seedlings. [5]

 Reference

[1] Foster, A.B., 1957. Zone electrophoresis of carbohydrates. In Advances in carbohydrate chemistry (Vol. 12, pp. 81-115). Academic Press.

[2] Southgate, D.A.T., 1969. Determination of carbohydrates in foods II.—Unavailable carbohydrates. Journal of the Science of Food and Agriculture20(6), pp.331-335.

[3] Burke, L.M., Hawley, J.A., Wong, S.H. and Jeukendrup, A.E., 2011. Carbohydrates for training and competition. Journal of sports sciences29(sup1), pp.S17-S27.

[4] Barsett, H., Aslaksen, T.H., Gildhyal, P., Michaelsen, T.E. and Paulsen, B.S., 2012. Comparison of carbohydrate structures and immunomodulating properties of extracts from berries and flowers of Sambucus nigra L. European Journal of Medicinal Plants, pp.216-229.

[5] Ibrahim, M.H., Nulit, R., Wahab, P.E.M., Najihah, T.S., Razak, A. and Zain, N.A.M., 2018. Impacts of Elevated CO2 on Growth, Carbohydrate Assimilation and Nutrient Uptake of Elaeis guineesis Jacq Seedlings. Annual Research & Review in Biology, pp.1-9.

 

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