Rose hip (Rosa canina L.) as a vitamin and antioxidants source in human diet

In Europe, Rosa gorenkensis Besser is considered an invasive species. However, its negative impact on native flora components or other habitat components has not been described so far. In the experiment, the germination reactions of mono- and dicotyledonous plant seeds to the aqueous extracts of R. gorenkensis were investigated to determine the allelopathic potential of this plant. Seeds of common plants – wild-growing Festuca rubra L. and cultivated Raphanus sativus L. var. radicula Pers. cv. ‘Rowa’ were treated with aqueous extracts from the roots, stalks, leaves, and flowers of rosa at concentrations of 1%, 2.5%, and 5%. Along with the increase in the concentration of allelochemical compounds in the extracts, the negative influence of the extracts on the germination capacity of the tested seeds species was found. Regardless of the type of extract, inhibition of the growth of the underground and aboveground parts of seedlings was also observed. Changes in biomass and water content, depending on the concentration and type of the extract, were found. The greatest differences in the electrolytes leakage in seedlings watered with 5% extracts were revealed. The study showed that the aqueous extracts of leaves and flowers of this species had the greatest allelopathic potential.

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Effect of Rosa gorenkensis Besser aqueous extracts on germination and early growth of native plant species

Tatoj

Możdżeń

Barabasz‐Krasny

et al. 2022

Not Bot Horti Agrobo

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Effect of Vitamin C Source on Its Stability during Storage and the Properties of Milk Fermented by Lactobacillus rhamnosus

2021

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The enrichment of commonly consumed foods with bioactive components might be helpful in promoting health and reducing the risk of disease, so the enrichment of probiotic fermented milk with vitamin C can be considered appropriate. The effect of vitamin C addition depends on the source of origin (rosehip, acerola and ascorbic acid in powder form) on the growth and survival of Lactobacillus rhamnosus and the quality of fermented milk on the 1st and 21st day of storage was analyzed. The pH, total acidity, vitamin C, syneresis, color, texture profile and numbers of bacterial cells in fermented milk were determined. The organoleptic evaluation was also performed. The degradation of vitamin C in milk was shown to depend on its source. The lowest reduction of vitamin C was determined in milk with rosehip. The least stable was vitamin C naturally found in control milk. The addition of rosehip and acerola decreased syneresis and lightness of milk color, increasing the yellow and red color proportion. In contrast, milk with ascorbic acid was the lightest during the whole experimental period and was characterized by a very soft gel. The growth of Lactobacillus rhamnosus during fermentation was most positively affected by the addition of rosehip. However, the best survival of Lactobacillus rhamnosus was demonstrated in milk with acerola. On the 21st day of storage, the number of L. rhamnosus cells in the control milk and the milk with vitamin C was >8 log cfu g−1, so these milks met the criterion of therapeutic minimum. According to the assessors, the taste and odor contributed by the addition of rosehip was the most intense of all the vitamin C sources used in the study.

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Róża (Rosa L.) w polskim ziołolecznictwie ludowym od drugiej połowy XIX do początków XXI wieku.

Gruszecki,

Walasek-Janusz

2024

Medycyna Nowożytna

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The rose is a versatile plant, it provides “jam and wine”, surrounds us with beauty and a pleasant scent, which in the form of essential oil is also a valuable cosmetic. The flowers, fruits, leaves, roots and galls, and even the soil in which it grew, were used in traditional herbal medicine in rural communities. These raw materials were used to prepare infusions, decoctions, jams, juices, water and alcohol extracts, ointments and smoke, which were used to fumigate the sick person or diseased places. They were used to treat eye diseases, dermatological diseases, diarrhea, dysentery, consumption, fever, cough, ulcers, wounds, bone, tooth, head and eye pain, and even to treat madness. Most often, however, rose was used to treat erysipelas, in Polish the name of the disease and the plant was identical, according to the principle “like cures like”. The multitude of obtained “medicines” and the variety of ways of preparing and using these raw materials indicate the ability of traditional communities to observe, draw conclusions, and also cope with situations when access to medical care was very limited. These observations, often supported by long practice, can inspire us to conduct further research on the medicinal properties of this valuable plant.

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Rose hip (Rosa canina L.) as a vitamin and antioxidants source in human diet

Cited by 3 publications

References 38 publications

Effect of Rosa gorenkensis Besser aqueous extracts on germination and early growth of native plant species

Effect of Rosa gorenkensis Besser aqueous extracts on germination and early growth of native plant species

Effect of Vitamin C Source on Its Stability during Storage and the Properties of Milk Fermented by Lactobacillus rhamnosus

Róża (Rosa L.) w polskim ziołolecznictwie ludowym od drugiej połowy XIX do początków XXI wieku.

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