Antoanela J Patras

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• Doctor of Biochemistry
• Professor (Associate) at "Ion Ionescu de la Brad" Iasi University of Life Sciences

Apple juice processing by-product (apple pomace), considered as waste that generates important pollution problems, is also a rich source of bioactive compounds, including minerals, dietary fibers, phenolic compounds, and vitamins. The recovery and reuse of these valuable compounds from apple pomace into new food products combats environmental pollu...

Winery waste represents an important source of bioactive compounds that exhibit antioxidantproperties and important antiradical activity. The concentration of ethyl alcohol in extractionenvironment has a significant influence on the rate of extraction and bioactive compounds as well asonto the measured parameters: the antioxidant activity of water-...

Rich in bioactive compounds, carbohydrates, fibers, minerals, and trace elements, apple pomace (AP) is a significant agro-industrial by-product, which pollutes and brings high management costs. The current study investigates the possibility of using an aqueous AP extract (APE) as the main ingredient in a jelly candy recipe, replacing artificial col...

Hawthorn (Crataegus monogyna) berry is a horticultural product containing antioxidants and pigments. Its extract can be used as a food dye and antioxidant in food engineering. The aim of present study is to research the effects of different possible conditions (temperature, pH, interacting ions, and storage conditions) on the color and antioxidant...

The study was conducted to study the sustainability and enhanced nutrition gains obtained from incorporating grape skin powder (GSP) extracted from both Fetească Neagră and Rară Neagră grape varieties into yogurt. Grape skins are major leftovers from wineries, having high amounts of phenolic compounds and dietary fiber responsible for their ability...

The apple processing industry generates large quantities of organic waste, presenting a major source of organic contamination. Consequently, finding an effective solution for valorizing this waste has become a pressing issue. This study aims to address two key concerns: (i) solving an agricultural problem by efficiently using agri-food residue, and...

Cornus mas (CM) is one of the four edible fruits of the Cornus genus, a rich source of biologically active compounds (BACs) such as vitamins (like vitamin C), carotenoids, iridoids, and phenolics (phenolic acids, anthocyanins, and other flavonoids). This study aimed to analyse the improvement of the stability of CM anthocyanins by microencapsulatio...

Annual grapevine pruning produces large amounts of unused waste as woody canes. The current study is aimed at the sustainable valorization of viticultural waste by establishing phenolic compound extraction conditions, composition, and biological potential of crude and purified cane extracts of three Vitis vinifera L. cultivars growing in temperate...

Non-thermal plasma-activated water (PAW) is used in agriculture to decontaminate the seed/grains surface, with possible positive effects on physiological processes. In the present study, PAW was generated in ambient air at atmospheric pressure in eight variants with pH and different doses of reactive species (H2O2, NO3⁻). We explored the indirect e...

Cornelian cherry (Cornus mas L.) is one of the most important forest fruits, considered as a valuable horticultural resource of bioactives, such as anthocyanins – cyanidin-3-glucoside, flavonoids, vitamins (e.g. vitamin C), carotenoids (e.g. β-carotene). The aim of this study was to obtain designed delivery systems of bioactive from cornelian cherr...

Our article presents the context and the results of an interdisciplinary workshop held in Iasi University of Life Sciences, a workshop which aimed to impart practical knowledge, encourage collaborative working and foster professional links between participants – language teachers and science teachers who worked on the creation of online learning re...

The winemaking waste (grape marc) can be beneficial if it is used in food, pharmaceutical industry, and medicine. However, studies reported that some concentrations of grape marc extracts may induce negative effects on animals. The present study was conducted in order to research if the grape marc induces abiotic stress with serious negative implic...

The wine industry has been and remains a source of natural- tartaric acid. The tartaric acid can be obtained from such wastes as grape marcs, yeast, vinasse and wine stone. But the use of these wastes was limited in the Republic of Moldova by the production of tartaric acid lime (calcium tartrate) and wine stone, which were shipped to Ukraine and A...

Every year, important quantities of winemaking waste create problems for wine producers. These problems arise from the difficulty of disposing of grape marc, which can pollute the environment and affect nearby agricultural crops. The present research proposes a new direction for the valorization of this agri-food waste in residual water depollution...

The article focuses on the optimization of the extraction process of biologically active compounds (BAC) from grape marc—a by-product of the wine industry. The influence of temperature, specifically 30 °C, 45 °C and 65 °C, and ethanol concentration in solutions, specifically 0–96% (v/v) on the extraction yield of polyphenols, flavonoids, tannins an...

Universitatea de Științe Agricole şi Medicină Veterinară „Ion Ionescu de la Brad”, Iași Grape seeds are the raw material from which vegetable oil is subsequently extracted. One of the pressing problems of the drying processes of wet vegetable products is the long duration of their thermal processing, which leads to increased energy consumption and...

Agro-industrial waste management is an important problem of modern society as agriculture and food industry are important sources of waste. Wine production generates a considerable amount of winemaking waste (grape marc). Grape marc can be a source of natural dyes, antioxidants and could have various applications, if it is confirmed that it does no...

Recent trends in the food industry combined with novel methods in agriculture could transform rowan into a valuable raw material with potential technological applications. Thus, the aim of this research was to investigate the content of bioactive compounds in its fruits and to assess the color and antioxidant stability of the extracts prepared from...

One of the economy key sectors of Republic of Moldova and Romania is the wine sector, where a progressive trend has prevailed in recent years. But to increase its efficiency it is necessary to use the raw material in a complex way, producing both famous wines and other necessary products, as well as to comply with the rigors of ecological standards...

Non-thermal plasma is an innovative, eco-friendly technology, being considered as an emerging technology in many research fields. This work presents an analysis of the influence of different parameters on the energy efficiency of a T-shaped non-thermal plasma reactor for plasma activated water generation. The tests were performed on four distinct d...

Microgreens, considered “superfood”, are easy to cultivate and very rich in health-promoting compounds, as antioxidants. White cabbage (Brassica oleracea var. capitata) microgreens contain high quantities of phenolics, which contribute together with other bioactive compounds to their important antioxidant properties. The present study analyses the...

Plasma activated water (PAW) can represent an alternative to chemical fertilizers in agriculture. The effects of PAW treatment applied in two concentrations (1.5 or 3.0 mg L−1 NO3−) on some morphological, physiological, biochemical parameters and yield of Lactuca sativa L. grown in two different pot volumes (400 or 3200 cm3) were investigated in th...

The present study analyzes the complex of bioactive compounds from rose hips pulp powder (RHP) obtained after separating the seeds from Rosa canina L. in order to obtain the oil. The extract prepared from RHP was characterized in terms of the total content of polyphenols, flavonoids, cinnamic acids, flavonols, carotenoids, but also the content of i...

Key words: fertilization, permanent meadow, botanical composition

Matching the general trend of replacing synthetic additives with healthier natural products, the present research studies the effects of different concentrations of chokeberry extract which substitute carmoisine dye in jelly candies. Also, the colour and antioxidant properties of the aforementioned extract and their changes at various pH and in pre...

Sea buckthorn (Hippophae rhamnoides) berries are well known for their content in bioactive compounds, high acidity, bright yellow color, pleasant taste and odor, thus their addition in a basic food such as bread could be an opportunity for modern food producers. The aim of the present research was to investigate the characteristics and the effects...

The present research studies the pollen biology of snowdrop (Galanthus nivalis L.), from the point of view of pollen’s germinating potential and length growth of pollen tubes at two temperatures: 18 °C and 4 °C. The germination was conducted “in vitro” on nutritive mediums containing different concentrations of sucrose (0, 5, 10, 15, 20, 25, 40, 50...

L'étude bibliographique et expérimental a établi les principes de l'incorporation dans les produits de charcuteriedes ajouts végétaux riches en antioxydants (baies secs de l'églantier et d'aubépine) en élucidant leur impact sur les transformations chimiques, physico-chimique et microbiologique du produit finit. Les saucisses fabriques avec fruits s...

The aim of this study was to evaluate the physico-chemical, microbiological, sensory properties and antioxidant activity of the functional cream cheese prepared with lipophilic extracts of sea buckthorn (Hippophae rhamnoides L.). The first step of the research consisted of an evaluation of the physico-chemical characteristics and the antioxidant ca...

Interspecific grapevine cultivars are the crossing product of two or more Vitis species. Due to the lack of information regarding the technological potential and quality characteristics of interspecific cultivars created in the last decades, the aim of this work was to evaluate the physico-chemical characteristics and physio-morphological particula...

The aim of present study was to investigate the influences of pH and several salts on the antioxidant activity and color of an ethanolic grape marc extract. Furthermore, the phenolic content of the extract was analyzed using HPLC and spectrophotometric methods while the total antioxidant activity was assessed by the reaction with ABTS radical. Gall...

Red cabbage waste is a valuable source of anthocyanins which may be used as natural food dye. Excepting the colouring agents, food/beverage contains compounds from the matrix or other additives/ingredients. Present study reveals the influences of nineteen food additives/ingredients on the stability, colour parameters and radical scavenging activity...

Noah and Othello cultivars are American direct producer hybrids with different genetic origins. Noah is native of Vitis labrusca × Vitis riparia and Othello of (Vitis labrusca × Vitis riparia) × Black Hamburg (Vitis vinifera). Their grape productions are different. Pollen quality is important for grape production. Present research studied the two d...

Sprouts are very rich in antioxidants (e.g. phenolic compounds) and their consumption is beneficial for humans’ health. The sprouts’ antioxidant properties are correlated to conditions of growth and maturity stage. The present study reveals the influence of maturity stage (5-, 7- and 9-day-old) and two sodium salts, NaCl and Na2SO4 (10 mM and 100 m...

Since quality requirements for table grapes are mainly related to their physico-chemical and mechanical features, the aim of this work was to provide useful data for grape producers and consumers concerning the quality characteristics of table grapes of five new Vitis vinifera L. cultivars created in Romania and tending to spread within the tempera...

The interest to replace synthetic food colorants, preservatives and antioxidants in beverages with natural ones is leading researchers to explore the polyphenols of winery wastes. It is of great interest to see if these compounds could replace synthetic dyes in drinks. However, it is still necessary to study the stability of extracts containing gra...

The variation of the content of 12 phenolic compounds from 5 months aged Cabernet Sauvignon and Merlot wine samples treated with siliceous and aluminosiliceous porous materials was analysed through a HPLC method. The standard physical-chemical analyses (alcoholic concentration, total acidity, volatile acidity, relative density, reductive sugars, to...

The aim of this paper is to investigate the mesoporous materials KIT-6 action on the content ofphenolic compounds from Romanian wine obtained from Fetească neagră variety. Experimentalmaterial used is Fetească neagră grapes. They were harvested from Copou wine region-Iaşi, in 2009. Tocharacterize the phenolic compounds, a spectrophotometric measure...

. Nowadays there is a continuous increase of sprouts consumption. The white cabbage is known as a resistant plant at different abiotic factors. It has the capacity to accumulate heavy metals without visible phytotoxicity symptoms, when the concentration is not excessively high. The morphological and biochemical modifications induced in cabbage spro...

The specific activities of acid (pH 5.5) and neutral (pH 7) DNases and RNases were determined in alfalfa (Medicago sativa L.) seedlings grown in the dark in the presence of 3.7mM paraquat (PQ) or 1mM roundup (RD). Seedlings were taken at 0, 1, 3, and 5days. Plant growth parameters (plant height and fresh weight) were dramatically reduced under thes...

The present study was conducted to study the quantitative and qualitative changes of RNases and DNases during rooting of Ebenus cretica cuttings, in order to associate them with root formation and relate them with the interdependent phases of rooting. Plants from RG (rooting genotype, 100% rooting) and NRG (non-rooting genotype, 0% rooting) were gr...

The walnut fruits (Juglans regia) contain many active principles which are very important for the prevention of many chronic diseases. The romanian walnut fruits are rich in nutritional compounds, with a high lipid content (between 55% and 76%), proteins (11% -25%) and carbohydrates (16%). Polyunsaturated fatty acids are found in a ratio around 70%...