Nav view search

Navigation

Search

IMPACT OF TECHNOLOGICAL OPERATIONS ON ISOFLAVONES CONTENT IN SOYBEANS (Glycine Max (L.) Merr.)

DOI: 10.19202/j.cs.2016.01.07

Keywords:

soybean (Glycine max (L.) Merr.), technological operations, isoflavones, ultra performance liquid chromatography (UPLC)

Summary
Soybean (Glycine max (L.) Merr) is a very good source of phytochemicals, mainly isofla-vones (phytoestrogens). These compounds are secondary metabolites of plants, they have an affinity to estrogens, so act on the body, performing its important functions. They can be used in the prevention of many diseases, contributing to improving the health and increasing the body's immunity, such as regulating the endocrine system, mix the risk of cardiovascular dis-ease, increase bone density.
The aim of this study was to determine the content of isoflavones in soybean seeds origi-nating from different producers ("Sante" and "Florpak") and in Polish variety “Aldana” sub-jected to technological operations: soaking and cooking. The analysis of the compounds was carried out using a liquid chromatograph coupled with a diode array detector and a mass de-tector in the form of a triple quadrupole (UPLC-PDA-MS). The content of the total isofla-vones in tested seeds of soybean was (results expressed in d. m.): "Aldana '- 644.23 mg/100 g," Sante' – 416.83 mg/100 g "Florpak '- 353.74 mg/100 g. For samples subjected to soaking in water (24 hours), these values were: Aldana "- 514.7 mg/100 g," Sante '- 307.79 mg/100 g, "Florpak' – 224.32 mg/100 g. For soybean samples tested (dry and soaked seeds) subjected to the cooking process, these values ranged from 102.58 ("Sante ') to 371.43 mg/100 g ("Aldana").

Rafał WIŚNIEWSKI, Ireneusz KAPUSTA
University of Rzeszów
Faculty of Biology and Agriculture
Department of Plant Food Technology and Crop Quality
Sabina LACHOWICZ
Wrocław University of Environmental and Life Sciences
Faculty of Food Science
Department of Fruit, Vegetable and Cereals Technology

Additional information