Igor Piotr TurkiewiczWrocław University of Environmental and Life Sciences · Department of Fruit, Vegetable and Plant Nutraceutical Technology
Igor Piotr Turkiewicz
Doctor of Engineering
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68
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Citations since 2017
Publications
Publications (68)
The present study aimed to evaluate the content of polyphenols and carotenoids as well as the health-promoting properties (antioxidant, antidiabetic, antiobesity, antiaging, and anti-inflammatory activities) in selected peaches cultivated in Poland.
The qualitative analysis of the tested cultivars showed that the content of polyphenols was dominate...
The aim present of the present study was to examine the nutritional (fat, fatty acids, minerals, sugars) and bioactive compounds (polyphenols, tocochromanols, triterpene) and their influence on in vitro anti-diabetic (pancreatic α-amylase and intestinal α-glucosidase), anti-obesity (pancreatic lipase) and anti-cholinergic (AChE and BuChE) inhibitor...
The aim of this study was to investigate the content of phenolics, free amino acids, tocopherols, tocotrienols and in vitro biological activities (α-amylase, α-glucosidase, and pancreatic lipase inhibition activity) of 12 cultivars of Chaenomeles × superba, japonica and speciosa leaves. In the present work 39 phenolic compounds were tentatively ide...
The functional food market has been in a state of constant expansion due to the increasing awareness of the impact of the diet on human health. In the search for new natural resources that could act as a functional ingredient for the food industry, microalgae represent a promising alternative, considering their high nutritional value and biosynthes...
Twelve carrot varieties in different colours and sizes were investigated for chemical properties (dry matter, ash, pectins, titratable acidity, and pH), contents of vitamin C, sugar, organic acids, mineral (sodium, potassium, calcium, iron, and magnesium), and anti-oxidant activities (ABTS, FRAP, and ORAC). Moreover, total polyphenolics and total t...
The aim of this present study was to comprehensively investigate polyphenolics by Liquid Chromatography– Quadrupole Time–of–Flight–Electrospry Ionization Mass Spectrofotometer (LC-QTOF/ESI-MS), amino acids, triterpene compounds, minerals, and organic acids, perform detailed analysis of sweet and sour cherry (S^Sch) fruits and leaves, and evaluate a...
![Total content of sugars and organic acids [g/100 g dw], minerals and...](publication/355189216/figure/fig1/AS:1078320594718735@1634103072218/Total-content-of-sugars-and-organic-acids-g-100g-dw-minerals-and-amino-acids-mg-100g_Q320.jpg)
This paper presents characterization of healthy potential new sources of functional constituents with reference to basic plant sources. In this study, the phenolics, triterpene, isoprenoids (chlorophylls and carotenoids), amino acids, minerals, sugars and organic acids of different cultivars of pome species-apple, pear, quince-leaves vs. fruits and...
BACKGROUND
Nowadays it is highly important to find new, cheap and widely available sources of tocopherol and tocotrienol compounds, and leaves are promising unconventional sources. The main goal of this study was to extend the currently limited knowledge concerning tocopherol and tocotrienol isomers composition determined using ultra-high performan...
This study aimed to identify and quantify triterpenoids, phenolic compounds (by UPLC/ESI-Q/TOF-MS) and minerals (by FAAS) of the anatomical berry parts (skin, flesh, endocarp, seed), branches and leaves of seven sea buckthorn cultivars. The flavonols exceeded 0.7 g/100 g dry weight of leaves and skins. The ratio of quercetin to isorhamnetin derivat...
The aim of this study was to determine the effect of different drying methods – freeze drying, spray drying and vacuum drying (at 50, 70, 90 °C) – on the quality factors of Japanese quince polyphenol extract, including physical parameters, phenolic compounds, and in vitro biological activities (antioxidant, anti-diabetic, anti-obesity, and antichol...
The nutritional prohle of seeds from eighteen Chaenomeles species and cultivars was determined using ultraperformance liquid chromatography (UPLC) and atomic absorption spectrometry (AAS). This is the hrst comprehensive attempt to determine the prohle and content of sugars, organic acids, polyphenols, triterpenes, tocochromanols and minerals in Cha...
BACKGROUND
Juices are currently the fast growing segment in the fruit and vegetable industry sector. However, there are still no reports on the diversity of phytochemical profile and health-promoting properties of commercial sea buckthorn (Hippophaë rhamnoides) juices. This study aimed to identify and quantify phytoprostanes, phytofurans (UHPLC-QqQ...
This study focused on the qualification (by LC-MS/qTof) and quantification (by UPLC-PDA) of carotenoids and chlorophylls of the fruit tree leaves (FTL) of commonly consumed fruits: apple, pears, quince, apricot, peach, plums, sweet and sour cherry. The FTL were collected at 2 time points: after tree blooming and after fruit collection. In FTL 7 car...
BACKGROUND: Obesity and type 2 diabetes mellitus are the most extended current chronic diseases and also Alzheimer pathology which is a progressive degenerative neurological disorder. Therefore, finding effective enzyme inhibitors responsible for the development of these diseases are essential. Therefore, the aim of this study was to investigate th...
The aim of the study was to analyze potential health-promoting and nutritional components (polyphenols, L-ascorbic acid, carotenoids, chlorophylls, amino acids, organic acid, sugars, ash and pectins) of selected sprouts (radish, lentil, black medick, broccoli, sunflower, leek, beetroot, mung beans) and microgreens (kale, radish, beetroot, green pea...
This study aimed to identify and quantify carotenoids, chlorophylls, tocopherols, tocotrienols and the free amino acid profile of 19 fruit cultivars of Chaenomeles × superba, Chaenomeles japonica, and Chaenomeles speciosa. For this purpose ultra-performance liquid chromatography (UPLC) with a photodiode array (PDA) and fluorescence (FL) detector co...
The aim of this study was to determine the effect of osmotic dehydration (OD) using fruit concentrates (apple, pear, pineapple, sour cherry, blackcurrant, and chokeberry), before combined drying involving convective drying and vacuum-microwave finish drying, on the drying kinetics and physiochemical parameters (dry weight, water activity, content o...
The preservation of herbs during post-harvest operations is crucial in maintaining their potency. The preservation of Malaysian rosemary (Rosmarinus officinalis L.) was investigated by determining the effect of various drying processes on active volatile components and their respective bioactivities. The drying processes included convective drying...
The World Health Organization (WHO) and the Food and Agriculture Organization of the United Nations (FAO) constantly emphasize the importance of increasing fruit and vegetable consumption; these natural products help in the prevention of major diseases. Smoothies are a simple and convenient way of doing so; thus, their demand is constantly growing...
Sea buckthorn (Hippophaë rhamnoides L.) juicewith inulin,maltodextrin, and inulin:maltodextrin
(1:2 and 2:1) were spray-, freeze- and vacuum-dried at 50, 70 and 90 °C. The study aimed to assess
the impact of drying methods and carrier agents on physical properties (moisture content, water
activity, true and bulk density, porosity, color parameters,...
Fruit powders can become a new and innovative direction of using the potential of Japanese quince (JQ) fruit in an affordable form. Therefore, physical (dry matter, true and bulk density, porosity and color) and chemical parameters of JQ juice powders obtained by using different carrier agents and drying techniques were evaluated. The juice was mix...
This study aimed to identify by UPLC-PDA-Q/TOF-MS and quantify by UPLC-PDA phenolic compounds (26 flavonols and 2 phenolic acids) and carotenoids (16) from berries of different cultivars of Hippophaë rhamnoides and determine correlations between these variables and in vitro anticholinergic and on-line antioxidant potential. Isorhamnetin derivatives...
This study aimed to identify and quantify the chemical composition and polyphenolic profile of 19 cultivars of Chaenomeles × superba, Chaenomeles japonica, and Chaenomeles speciosa by liquid chromatography coupled with photodiode array detector and quadrupole time-of-flight electrospray ionization mass spectrometry (LC-PDA-QTOF-ESI-MS). Antioxidant...
The aim of this study was to analyze in vitro biological activities as anti-oxidant, anti-α-amylase, anti-α-glucosidase, anti-lipase, and anti-lipoxygenase activity, relative to bioactive components (phenolic acids, flavonols, xanthophylls, carotenes, esterified carotenoids, tocopherols, tocotrienols, and fatty acids) and the basic chemical composi...
The aim of this study was to determine the effect of different drying methods – convective drying (at 50, 60, 70 °C), vacuum-microwave drying (at 120, 240, 480 W and 480 W with reduction to 120 W), a combination (of convective pre-drying (at 50, 60, 70 °C) and by vacuum-microwave finish drying (at 120 W)) and freeze-drying – on the quality factors...
The aim of the study was to analyze the chemical composition of new artichoke cultivars and hybrids and to assess their potential health-promoting properties. Polyphenols, carotenoids and chlorophylls were identified by liquid chromatography-photodiode detector-mass spectrometry/quadrupole time of flight (LC-PDA-MS/QTof) and quantified by ultra per...
Punicalagin is responsible for over 50% of the antioxidant activity of pomegranate, but ellagic acid (EA) and total polyphenol content (TPC) are also key parameters regarding pomegranate bioactivity. Many juices and other drinks based on pomegranate take advantage from the widespread healthy image of this fruit, whereas their real content of bioact...
The aim of this study was to analyze phenolic compounds and in vitro biological activity of seeds, skins and flesh of V. vinifera cultivars and interspecific hybrids grown in Poland. Their phenolic profile was analyzed using LC-PDA-MS-QTOF and UPLC-PDA-FL and 48 compounds were identified, including nine phenolic acids, one stil-bene, 12 anthocyanin...
Sea buckthorn (Hippophae rhamnoides L.) belongs to the family Oenolphus (Elaeagnaceae) and naturally occurs in Europe and Asia. The fruits contain a number of bioactive compounds: flavonoids, carotenoids, fatty acids and a number of vitamins, mainly from group B and PP, K, provitamins A and D, as well as tocopherols and ascorbic
acid. However, sea-...
In this paper were presented edible flowers as interesting raw materials with attractive chemical profile, sensory properties and high effective in the prevention of chronic non-communicable diseases. It was also showed the potential directions for using the aforementioned plants in the food and pharmaceutical industries.
Finally, it was confirmed...
Projects
Projects (5)
The research objective of the project will be to determine the microencapsulation feasibility (drying method x carrier type x process parameters) and its impact on the stability of the chlorophyll pigments and the formation of their derivatives (such as chlorophyllides, pheophytins and pheophorbides) as a factor having a significant effect on stability, bioavailability and bioaccessibility in the model in vitro system with regard to their anti-diabetic properties (inhibition of α-amylase, α-glucosidase and dipeptidyl peptidase-4).
The main goal of the project is to attempt to modulate the nutritional values and functional properties of Japanese quince fruit by using osmotic dehydration in selected fruit concentrates before the drying process, and then to determine the bioactive potential of the obtained products taking into account anti-neurodegenerative properties.
Development of microspheres based on sea buckthorn fruit juice (Hippophaë rhamnoides L.) and their assessment of physical parameters, chemical composition and anti-oxidant and anti-diabetic effects in vitro.
