Many new plant proteins are appearing on the market, but their properties are insufficiently characterized. Hence, we collected 24 commercial proteins from pea, oat, fava bean, chickpea, mung bean, potato, canola, soy, and wheat, including different batches, and assessed their techno-functional and sensory properties. Many powders had yellow, red, and brown color tones, but that of fava bean was the lightest.
View Article and Find Full Text PDFThe number of plant-based dairy alternative products on the market is growing rapidly. In the case of soybean-based yoghurt alternatives, it is important to trace the content of saponins, the phytomicronutrients with a disputable health effect, which are likely to be responsible for the bitter off-taste of the products. We present a new sample extraction method followed by hydrophilic interaction liquid chromatography with mass spectrometric detection (HILIC-MS) for identifying and quantifying soyasaponins in soybean-based yoghurt alternatives.
View Article and Find Full Text PDFIn the present study, an oat drink, a plant-based alternative to dairy products, was developed by fermenting the oat base with different vegan starter cultures. The desired pH below 4.2 was achieved in 12 h, regardless of starter culture used.
View Article and Find Full Text PDFThis work presents the sample extraction methods for solid and liquid sample matrices for simultaneous quantification of oat ( L.) and pea ( L.) saponins: avenacoside A, avenacoside B, 26-desglucoavenacoside A, and saponin B and 2,3-dihydro-2,5-dihydroxy-6-methyl-4H-pyran-4-one (DDMP) saponin, respectively.
View Article and Find Full Text PDFIn this work, the LC-MS-ESI-TOF method for simultaneous determination of phytates (inositol mono-, bis-, tris-, tetrakis-, pentakis-, and hexakisphosphates, abbreviated to IP1, IP2, IP3, IP4, IP5, and IP6, respectively) in food samples was developed and validated. The suitability of U-C-labelled maize as a source for labelled internal standards for quantification of phytates was elucidated. The effectiveness of liberating IP1, IP2, IP3, IP4, and IP5 from phytic acid extracted form U-C-labelled maize was evaluated for a variety of hydrolysis conditions, including enzymatic and acid hydrolysis.
View Article and Find Full Text PDFThe application of reverse osmosis (RO) for preconcentration of milk (RO-milk) on farms can decrease the overall transportation costs of milk, increase the capacity of cheese production, and may be highly attractive from the cheese manufacturer's viewpoint. In this study, an attempt was made to produce a hard cheese from RO-milk with a concentration factor of 1.9 (RO-cheese).
View Article and Find Full Text PDFThe growth of Streptococcus thermophilus ST12 (ST12) in liquid milk, reconstituted from low-heat skim milk powder reconstituted skim milk (RSM) and in RSM with rennet addition (r-RSM) at 40°C was monitored by microcalorimetry. It was shown that the growth rate of bacteria decreased in renneted samples in comparison with liquid RSM starting from certain sizes of the colonies ("deviation moments"), which depended on the inoculation rates. The hydrolysis of lactose was delayed for about 1 h in the r-RSM in comparison with RSM but otherwise the metabolism of carbohydrates in the renneted and non-renneted milks was similar.
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