Vitamin A deficiency is a health problem in Southeast Asia that can be corrected by feeding orange fruits and vegetables such as mango. Pumpkin is a traditional Korean food that is easy to store and is already believed to have health benefits. We extracted carotenoids from pumpkin by liquid-liquid extraction and by supercritical fluid extraction. We measured carotenoids by reversed-phase chromatography with diode array detection. The major carotenoid in pumpkin (> 80%) is beta-carotene, with lesser amounts of lutein, lycopene, alpha-carotene and cis-beta-carotene. Pumpkin is a rich source of beta-carotene and might be useful for preventing Vitamin A deficiency.
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http://dx.doi.org/10.1016/j.chroma.2004.10.044 | DOI Listing |
Molecules
November 2024
Division of Process Engineering, Institute of Chemical Technology and Engineering, Poznań University of Technology, ul. Berdychowo 4, 60-965 Poznan, Poland.
Increasing the consumption of fruit and vegetables can be achieved by creating new products. A promising method seems to be the directed fermentation of vegetables. The aim of this study was to investigate the effect of ultrasonic pretreatment (US; 25 kHz; 5 min) and the lactic acid bacteria strain (LAB; 299v and GG) on the quality of fermented pumpkin ( L.
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December 2024
Center for Food Analysis (NAL), Technological Development Support Laboratory (LADETEC), Federal University of Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro, RJ 21941-598, Brazil; Nanotechnology Network, Carlos Chagas Filho Research Support Foundation of the State of Rio de Janeiro (FAPERJ), Rio de Janeiro, RJ 20020-000, Brazil. Electronic address:
This study investigated pumpkin seed protein (PSP) as a carrier for astaxanthin (AST). Interaction mechanisms revealed through fluorescence spectroscopy and molecular docking, showed that hydrogen bonds and Van der Waals forces form the PSP-AST complex. AST binding altered PSP's secondary structure, increasing α-helix (7.
View Article and Find Full Text PDFJ Oleo Sci
December 2024
Department of Food Engineering, Selcuk University, Faculty of Agriculture.
In this study, the effect of roasting process on oil, antioxidant activity, total phenol, flavonoid, carotenoid and phenolic constituents and fatty acid compositions of pumpkin (Cucurbita spp.) seeds and oils was investigated. The oil yields of "Topak" and "Sivri" pumpkin seeds were assessed to be between 47.
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November 2024
Department of Crop Sciences, Tshwane University of Technology, Pretoria 0001, South Africa.
This study examined the impact of fermentation using () and () on the total soluble solids (TSS), pH, TA, LAB survival, color properties, ascorbic acid content, total phenolic content (TPC), carotenoid components, and antioxidant properties of smoothies made from melon varieties (Cantaloupe, Honeydew, and Watermelon) separately with pumpkin leaves ( and ). For all smoothies, pH (r = -0.74) and TSS (r = -0.
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February 2025
Prof. Wacław Dąbrowski Institute of Agricultural and Food Biotechnology- State Research Institute, Department of Fruit and Vegetable Product Technology, 36 Rakowiecka St., 02-532 Warsaw, Poland. Electronic address:
Supercritical carbon dioxide (SCCD) has been studied for its effectiveness in preserving vegetables, but most research has focused on overall changes in the total phenolic, carotenoid and sugar contents. However, the detailed changes in individual nutrients during storage, as well as their relationship, remain largely unexplored. Herein, in this work, high-performance liquid chromatography (HPLC) was used to analyze the variations in individual carotenoids and sugars in SCCD-treated carrots and pumpkins during 21 days of storage.
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