Estimation of glycaemic index of peach palm (Bactris gasipaes) cooked fruit and chips, and pitahaya (Hylocereus spp.) pulp
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| Autoři: | , , , |
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| Médium: | artículo original |
| Datum vydání: | 2012 |
| Popis: | The glycaemic index (GI) is a physiological measure of a food’s potential to increase postprandial blood glucose, as compared to the effect produced by food taken as reference, such as glucose or white bread. Currently researchers and consumers are interested in low GI foods, since their consumption is associated with better weight control and reduced risk of incidence of chronic diseases, like diabetes. In the present study, the GI value for peach palm cooked fruit, peach palm chips and pitahaya pulp was estimated. The methodology established by the FAO / WHO for determining the GI of food was used. A total of 12 healthy, non-smoking volunteers were selected and they ingested the fore mentioned foods on different occasions, in 25 g portions of avai- lable carbohydrates, after 12-14h overnight fast. Blood glucose levels were measured in 30 min inter- vals up to 120 min after ingestion. Average GI value was 48 ± 11 for the pitahaya pulp and 35 ± 6 for the peach palm cooked fruit, which may be classified as low glyceamic index foods. The GI of peach palm chips was 60 ± 7, corresponding to a food with a mo- derate GI. The processing for producing the chips caused an increase in the GI value when compared to the cooked fruit, probably because the stages of mi- lling, moulding and baking promote availability of starch during hydrolysis by the digestive enzymes. |
| Země: | Kérwá |
| Instituce: | Universidad de Costa Rica |
| Repositorio: | Kérwá |
| OAI Identifier: | oai:kerwa.ucr.ac.cr:10669/75140 |
| On-line přístup: | https://www.alanrevista.org/ediciones/2012/3/art-6/ https://hdl.handle.net/10669/75140 |
| Klíčové slovo: | Indice glicémico Pejibaye Pitahaya Glucosa sanguínea Alimentos funcionales Glycaemic index Peach palm Blood glucose Functional foods 572.565 Azúcares |