Worldwide it is of great interest to find new and safe antioxidants from natural sources.Green leafy vegetables wild plant leaves are healthy nutrients, containing vitamins, minerals biological active compounds, therefore these plants provide beneficial health effects due the presence antioxidant compounds.It useful popular supplement human diets with fresh or frozen edible plants.It known that freezing may help preserve quality plants, superior other preservation methods.The aim research...

The profile of amino acids and mono- disaccharides in conventional polyfloral honey originated from Latvia Tajikistan less found nature bumblebee Russia was investigated. analysis free (FAAs) accomplished by multiple reaction monitoring (MRM) using triple quadrupole mass selective detection (HPLC-ESI-TQ-MS/MS) revealed the presence 17 FAAs. concentration FAAs varied range 0.02-44.41 mg 100 g-1 FW. Proline main representative FAAs, contributing to total amount 41.7% 80.52%. highest proline...

Phenolic compounds are of a considerable interest and have received more attention in recent years due to their bioactive functions. These components known as secondary plant metabolites also possess antimicrobial, antiviral anti-inflammatory properties. The popular Latvian herbals – Calendula (Calendula officinalis L.), Lady’s-mantle (Alchemilla vulgaris Yarrow (Achillea millefolium Peppermint (Mentha × piperita L.) Bellis (Bellis perennis widely used for herbal teas. objective this study...

Abstract The aim of the present research was to summarize results investigations carried out on influence different biodegradable polymer packaging materials shelf life and quality several food products during storage. In Latvia, most consumers consider that polymers as a material for are overly used, they support idea introducing new eco-friendly packaging. Biodegradable films were investigated their ability extend apple salad minimally processed shredded carrots stored at 4 °C. It found...

Abstract The main purpose of the study was to determine changes polyphenol concentrations in hybrids Nante type carrots during storage. Fresh ‘Forto’ variety and carrot ‘Bolero’ F1, ‘Champion’ ‘Maestro’ F1 were cultivated Zemgale region Latvia. Carrots stored for six months air (+3 ± 1 °C, RH = 89 1%) compound determined at two month intervals. High-performance liquid chromatography used eight polyphenols carrots: gallic acid, catechin, epicatechin, caffeic chlorogenic ferulic vanillin,...

Carrots are one of the most consumed plant foods in world all seasons; they good sources natural antioxidants and contain many different antioxidant components. recommended for healthy diets as recognized dietary fiber substances, such phenols. The current research focuses on evaluation total phenolic antiradical activity changes hybrids Nantes carrots during storage. Late-bearing variety hybrid were used experiments Nantes/Berlikum, Nantes/Maestro, Nantes/Forto, Nantes/Bolero...

Ginger (Zingiber officinale) is known as an additive for food and therapeutic purposes.It can help improve memory, helps eliminate toxins from the body, lowering arterial pressure cholesterol, a good source of many bioactive compoundsphenolic s, vitamins mineral elements.The aim study was to determine biological active compounds fresh dried ginger in aqueous extracts.Spectrophotometric methods were used determination content total phenolic (according Folin-Ciocalteu method) flavonoid...

Natural colours of wild plants are similar to artificial pigments, for example: β-carotene and chlorophyll.The aim research was investigate the effect drying or freezing on colour intensity pigments content in leaves edible -stinging nettle (Urtica dioica L.), common goutweed (Aegopodium podagraria dandelion (Taraxacum officinale L.) chickweed (Stellaria media grown early spring Latvia.Samples were gather May 2018.Pigments (total chlorophylls, chlorophyll a, b total carotenoids) ethanol...

The objective of the current research is to evaluate quality changes shredded carrots treated with 2 ppm ozonated tap water for 60 s ± 1 s. Treated have been packed in several materials (hermetically sealed by breathing polymer film BOPP PropafilmTM P2GAF, cellulose based biodegradable NatureFlex NVS and Polilactid BIO-PLA Containers) stored at temperature + 4 °C 10 days. Main parameters using standard methods analysed: total carotenoids β-carotene, phenolic, antioxidant capacity, soluble...

Abstract Fresh-cut herbs satisfy consumer demand owing to the convenience of buying them in food shopping malls as quickly accessible products. Food packaging has an important role industry nowadays, because it helps preserve quality fresh-cut products at production and sales sites provides safety during storage. The aim this research was evaluate changes rosemary packed stored biodegradable film packaging. Rosemary been several materials – two materials, NatureFlex TM NVS INNOVIA film,...

Innovative (ozonised water, hydrogen peroxide) treatment solutions is one of the newest agents used to decrease count microorganisms in vegetables.NatureSeal ® AS5 a commercial solution for vegetables worldwide.The aim this work was study effect various solutionshydrogen peroxide, ozonised water and NatureSeal (in concentrations different time) with main purpose ensure microbiological safety fresh-cut carrots.Non-treated carrots were as control sample.The following regimes investigated: time...

Fructose is the dominant monosaccharide in bilberry juice and red juice, but glucose cranberry juice. Dominant polyphenols are catechine chlorogenic acid. In juices, most common acids citric, quinic tartaric acids, – malic acids. When heat-treated for 30 min at 98 °C ± 1 °C, HMF content 2-fold higher than samples treated 60 °C. solutions from lyophilisates of wild berry turbidity translucent coloration have been determined.

Winter wheat (Triticum aestivum L.) is one of the most widespread and economically beneficial crops in Latvia. Wheat grain yield quality are strongly related to growing conditions crop that possible improve agronomically by carrying out an appropriate soil tillage it a well-planned sequence. The aim study determine system precrop influence winter flag leaf parameters indicators. A two-factor field trials was set up Latvia University Life Sciences Technologies training research farm...

The present study aimed to investigate the effect of solution ethanol extractions different microalgae species: Spirulina sp., Dunaliella sp. and Chlorella on accumulation biologically active compounds in tomato fruits. Ethanol as well treatment with drinking water were used a control. Tomato cultivar ‘Belle’ F1 (Enza Zaden) was grown 25 L pots, peat substrate (pHKCl 5.5, producer Laflora LTd), polycarbonate greenhouse. Chemical composition – total carotenoids, lycopene β-carotene content,...

This study aimed to detect an impact of water–ethanol extracts different microalgae species—Spirulina platensis, Dunaliella salina and Chlorella vulgaris—on the accumulation bioactive compounds in tomatoes. A treatment with corresponding ethanol solution pure drinking water was used as a control. Tomato cultivar ‘Belle’ F1 (Enza Zaden) grown polycarbonate greenhouse, 25 L pots filled peat substrate (pH KCl 5.5). The plants were sprayed weekly from germination until start harvesting, total...

Cereal crops are cultivated worldwide in diverse environments.In Latvia wheat (Triticum aestivum L.) is the most common cereals.One of important quality indices gluten quantity and quality.The aim this experiment was to assess effect different farming systems (organic conventional) on wet four winter cultivars one grain line.Field investigation with 'Fredis', 'Edvins', 'Skagen', 'SW Magnific' line '94-5-N' were carried out within framework value for cultivation use plant variety testing...

Tomatoes are one of the most consumed vegetables in world. Unfortunately, obtaining a high quality tomato yield our latitudes is inconceivable without additional lighting. Changes biochemical composition mainly dependent on light received by plant. During winter months, natural daylight at 55 ° latitude insufficient to provide necessary vegetation for fruit-bearing vegetables. The aim this study investigate changes fruits using less conventional lighting methods, which could offer potential...

Abstract European wild garlic ( Allium ursinum L.) syn. wood garlic, ramsons or bear’s is a perennial plant that common in Europe and Asia, but rare the Mediterranean region. Bear’s included Latvian Red Data Book. The species has high commercial value amount of biologically active compounds. Because conservation status populations, raw material should be obtained by cultivation. For experiment, leaves six accessions from ex situ collection medicinal aromatic plants at Latvia University Life...