scholarly journals Trichoderma hamatum Increases Productivity, Glucosinolate Content and Antioxidant Potential of Different Leafy Brassica Vegetables

Plants ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 2449
Author(s):  
Pablo Velasco ◽  
Víctor Manuel Rodríguez ◽  
Pilar Soengas ◽  
Jorge Poveda
Keyword(s):  
Antioxidant Potential ◽  
Systemic Resistance ◽  
Glucosinolate Content ◽  
Antioxidant Compounds ◽  
Trichoderma Hamatum ◽  
Brassica Crops ◽  
Brassica Vegetables ◽  
Turnip Greens ◽  
First Time ◽  
Fungal Inoculation

Brassica crops include important vegetables known as “superfoods” due to the content of phytochemicals of great interest to human health, such as glucosinolates (GSLs) and antioxidant compounds. On the other hand, Trichoderma is a genus of filamentous fungi that includes several species described as biostimulants and/or biological control agents in agriculture. In a previous work, an endophytic strain of Trichoderma hamatum was isolated from kale roots (Brassica oleracea var. acephala), describing its ability to induce systemic resistance in its host plant. In the present work, some of the main leafy Brassica crops (kale, cabbage, leaf rape and turnip greens) have been root-inoculated with T. hamatum, having the aim to verify the possible capacity of the fungus as a biostimulant in productivity as well as the foliar content of GSLs and its antioxidant potential, in order to improve these “superfoods”. The results reported, for the first time, an increase in the productivity of kale (55%), cabbage (36%) and turnip greens (46%) by T. hamatum root inoculation. Furthermore, fungal inoculation reported a significant increase in the content of total GSLs in cabbage and turnip greens, mainly of the GSLs sinigrin and gluconapin, respectively, along with an increase in their antioxidant capacity. Therefore, T. hamatum could be a good agricultural biostimulant in leafy Brassica crops, increasing the content of GSLs and antioxidant potential of great food and health interest.

scholarly journals Constituents of Chamaecrista diphylla (L.) Greene Leaves with Potent Antioxidant Capacity: A Feature-Based Molecular Network Dereplication Approach

Pharmaceutics ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 681
Author(s):  
Paulo Gomes ◽  
Luis Quirós-Guerrero ◽  
Abraão Muribeca ◽  
José Reis ◽  
Sônia Pamplona ◽  
...  
Keyword(s):  
Antioxidant Capacity ◽  
Ethanolic Extract ◽  
Oxygen Radical ◽  
Molecular Network ◽  
Antioxidant Compounds ◽  
Herbaceous Plant ◽  
Network Approach ◽  
Feature Based ◽  
Promising Source ◽  
First Time

Chamaecrista diphylla (L.) Greene (Fabaceae/Caesalpiniaceae) is a herbaceous plant that is widely distributed throughout the Americas. Plants from this genus have been used in traditional medicine as a laxative, to heal wounds, and to treat ulcers, snake and scorpion bites. In the present study, we investigated the chemical composition of Chamaecrista diphylla leaves through a mass spectrometry molecular network approach. The oxygen radical absorbance capacity (ORAC) for the ethanolic extract, enriched fractions and isolated compounds was assessed. Overall, thirty-five compounds were annotated for the first time in C. diphylla. Thirty-two of them were reported for the first time in the genus. The isolated compounds 9, 12, 24 and 33 showed an excellent antioxidant capacity, superior to the extract and enriched fractions. Bond dissociation energy calculations were performed to explain and sustain the antioxidant capacity found. According to our results, the leaves of C. diphylla represent a promising source of potent antioxidant compounds.

scholarly journals Desamerization of Bitter Jam: Biochemical and Sensory Quality

2018 ◽  
Vol 2018 ◽  
pp. 1-13
Author(s):  
Samira Lagha-Benamrouche ◽  
Terkia Benaissa ◽  
Rezki Sadoudi
Keyword(s):  
Chemical Composition ◽  
Vitamin C ◽  
Sensory Analysis ◽  
Sensory Quality ◽  
Bioactive Compound ◽  
Antioxidant Potential ◽  
Antioxidant Compounds ◽  
Bitter Orange ◽  
Sensorial Quality

This work consists of studying the influence of the desamerization of the mesocarpe on the chemical composition and the sensorial quality of the jam, based on the bitter orange. The results of the various analysis show that desamerization decreases acidity, sugars, protein, and bioactive compound levels (carotenoids, polyphenols, and vitamin C), but desamerized jams still remain an important source of antioxidant compounds with antioxidant potential in the diet. Concerning the sensory analysis of the jams, the results show that the jam desamerized with water presents the same bitterness as the bitter jam and that the salt significantly reduces the bitterness of the jams.

scholarly journals Flavonoid Profiles of Two New Approved Romanian Ocimum Hybrids

Molecules ◽  
2020 ◽  
Vol 25 (19) ◽  
pp. 4573
Author(s):  
Fanica Balanescu ◽  
Maria Daniela Ionica Mihaila ◽  
Geta Cârâc ◽  
Bianca Furdui ◽  
Costel Vînătoru ◽  
...  
Keyword(s):  
Cyclic Voltammetry ◽  
Phenolic Compounds ◽  
Methanolic Extract ◽  
Total Phenolic ◽  
Antioxidant Compounds ◽  
Flavonoid Content ◽  
Traditional Herbal Medicine ◽  
Risk Of Cancer ◽  
First Time ◽  
Phenolic And Flavonoid

Basil (Ocimum spp.) is a traditional herbal medicine abundant in antioxidants such as phenolic compounds. As part of a diet, this herb is proved to have some roles in decreasing the risk of cancer, and in the treatment of inflammation and neurodegenerative diseases. This study aims to explore the total phenolic and flavonoid content of two new basil hybrids growing in Romania, namely “Aromat de Buzau” (AB) and “Macedon” (MB). The antioxidant capacity of those two species was also analyzed by DPPH and cyclic voltammetry. Six different flavonoids, such as catechin (+), rutin, hyperoside, naringin, naringenin, and genistein, were separated, identified, and quantified by HPLC–DAD chromatography, for the first time, from romanian basil hybrids. The main flavonoid of the extracts was found to be naringin which is present in the highest amount (26.18 mg/kg) in “Aromat de Buzau” (O. basilicum) methanolic extract. These results suggest that dietary intake of these new hybrids can be a source of antioxidant compounds.

scholarly journals A First Approach to the Chemical Composition and Antioxidant Potential of Guinea-Bissau Propolis

2019 ◽  
Vol 14 (5) ◽  
pp. 1934578X1984413 ◽  
Author(s):  
Soraia I. Falcão ◽  
Mélissa Lopes ◽  
Miguel Vilas-Boas
Keyword(s):  
Antioxidant Activity ◽  
Chemical Composition ◽  
Physicochemical Properties ◽  
Natural Product ◽  
Broad Spectrum ◽  
Biological Activities ◽  
Chemical Diversity ◽  
Antioxidant Potential ◽  
Phenolic Composition ◽  
First Time

Propolis is a natural product derived from plant resins collected by honeybees and used in the beehive as a construction and defensive material. The broad spectrum of biological activities is dependent on the chemical diversity of its composition which is determined by the floral sources at the site of collection. For the first time, the chemical composition of Guinean propolis as well as its physicochemical properties, phenolic composition, and antioxidant activity was assessed. Eight compounds were identified through LC/DAD/ESI-MS n , mostly isoflavonoids, resembling Nigerian and Brazilian red propolis from the genus Dalbergia.

scholarly journals Comparative Study of the Chemical Compositions and Antioxidant Activities of Fresh Juices from Romanian Cucurbitaceae Varieties

Molecules ◽  
2020 ◽  
Vol 25 (22) ◽  
pp. 5468
Author(s):  
Anna Cazanevscaia Busuioc ◽  
Andreea-Veronica Dediu Botezatu ◽  
Bianca Furdui ◽  
Costel Vinatoru ◽  
Filippo Maggi ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Chemical Composition ◽  
High Performance ◽  
Antioxidant Activities ◽  
Fruit Juices ◽  
Antioxidant Potential ◽  
Chemical Compositions ◽  
Beneficial Effects ◽  
Benincasa Hispida ◽  
First Time

Cucurbitaceae is a family of health-promoting plants due to their compounds with beneficial effects. The aim of this study was to analyze, for the first time, the chemical composition, the antioxidant activity and the metal chelating properties of fruit juices obtained from four different species of the Cucurbitaceae family cultivated in Romania, namely Momordica charantia, Cucumis metuliferus, Benincasa hispida and Trichosanthes cucumerina. The samples of juice were analyzed by high-performance liquid chromatography (HPLC) and all the four species displayed high levels of the two triterpenes, oleanolic and ursolic acids, and also in phenolic compounds, including catechin, (−)-epicatechin and gallic acid. The juices demonstrated significant antioxidant activity against the free radical 2,2-diphenyl-1-picrylhydrazyl (ranging from 20 to 95%,), a good iron binding ability (ranging from 7.45 ± 0.28% to 86.95 ± 0.97%) and also promising antioxidant potential against the ABTS radical (ranging from 4.97 to 32.60 μETx/mL juice). Our findings raise interesting questions for further research on Cucurbitaceae fruit juices and, consequently, their very good antioxidant potential suggests these fruits should be further explored for their protective effect against oxidative damage. This is the first time the chemical composition and antioxidant activities of fruit juices from these four Romanian Cucurbitaceae varieties have been investigated.

scholarly journals Seasonal Variation of Glucosinolate Hydrolysis Products in Commercial White and Red Cabbages (Brassica oleracea var. capitata)

Foods ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 1682
Author(s):  
Nicole S. Wermter ◽  
Sascha Rohn ◽  
Franziska S. Hanschen
Keyword(s):  
Seasonal Variation ◽  
Hydrolysis Product ◽  
Red Cabbage ◽  
Beneficial Effects ◽  
Hydrolysis Products ◽  
Food Retailers ◽  
Brassica Vegetables ◽  
Health Promoting ◽  
First Time ◽  
Excellent Source

Brassica vegetables contain glucosinolates, which are well-known for their potential to form health-promoting isothiocyanates. Among those crucifers, white and red cabbage are commonly consumed vegetables, exhibiting different glucosinolate and hydrolysis profiles thereof. Regarding the health beneficial effects from these vegetables, more information, especially concerning the seasonal variation of glucosinolate profiles and the formation of their bioactive hydrolysis products in commercial cabbages, is needed. In this study, glucosinolates and glucosinolate hydrolysis product profiles in red and white cabbages from three different food retailers were monitored over six different sampling dates across the selling season in autumn. For the first time, it was shown that, while glucosinolate profiles were similar in each cabbage variety, glucosinolate hydrolysis product profiles and hydrolysis behavior varied considerably over the season. The highest total isothiocyanate concentrations were observed in conventional red (1.66 μmol/g FW) and organic white (0.93 μmol/g FW) cabbages purchased at the first sampling date in September. Here, red cabbage was with up to 1.06 μmol/g FW of 4-(methylsulfinyl)butyl isothiocyanate (sulforaphane), an excellent source for this health-promoting isothiocyanate. Cabbages purchased 11 weeks later in autumn released lower levels of isothiocyanates, but mainly nitriles and epithionitriles. The results indicate that commercial cabbages purchased in early autumn could be healthier options than those purchased later in the year.

scholarly journals Environmental and Genetic Variation in Essential Mineral Nutrients and Nutritional Value Among Brassica Vegetables

2018 ◽  
Vol 10 (7) ◽  
pp. 1
Author(s):  
Moo Jung Kim ◽  
Tyler J. Simpson ◽  
Yu-Chun Chiu ◽  
Talon M. Becker ◽  
John A. Juvik ◽  
...  
Keyword(s):  
Nutritional Value ◽  
Daily Intake ◽  
Dry Weight ◽  
Total Solar Radiation ◽  
Adequate Intake ◽  
Pak Choi ◽  
Brassica Crops ◽  
Brassica Vegetables ◽  
Edible Tissues ◽  
Dietary Minerals

Dietary minerals play an important role in human nutrition and proper metabolism. We grew various Brassica crops under field conditions in 2012 and 2013 and analyzed 8 essential minerals from edible tissues of those crops. Among the investigated crops, pak choi (Brassica rapa), mustard greens (B. juncea; B. nigra), and komatsuna (B. rapa) were generally high in most minerals, according to dry weight-based concentrations. The percentage recommended daily intake (RDA) or adequate intake (AI) values, calculated using fresh weight-based concentrations, suggest that Brassica vegetables are a good source of iron, calcium, and manganese, providing > 20% of %RDA/AI depending on crop. Kale (B. oleracea; B. napus) was generally higher in %RDA/AI, in particular for calcium (Ca), phosphorous (P), magnesium (Mg), and manganese (Mn). From the 2-year study, days to harvest, growing degree days, total solar radiation, and total precipitation and evaporation were found to affect the concentration of Ca, P, Ma, and Me. The results of this study provide a direct comparison of the mineral composition of various Brassica crops grown under the same conditions and will help consumers’ food choice for better nutritional value.

Ovine ill-thrift in Nova Scotia. 9. Production of experimental quantities of isocyanide metabolites of Trichoderma hamatum

1982 ◽  
Vol 28 (11) ◽  
pp. 1252-1260 ◽  
Author(s):  
D. Brewer ◽  
A. Feicht ◽  
A. Taylor ◽  
J. W. Keeping ◽  
A. A. Taha ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Main Product ◽  
Micrococcus Luteus ◽  
Culture Broth ◽  
Antibiotic Activity ◽  
The Other ◽  
Trichoderma Hamatum ◽  
Laboratory Cultures ◽  
Unstable Compound ◽  
First Time

Laboratory cultures of Trichoderma hamatum produce metabolites that are characterized by an isocyanide functionality. Three such metabolites predominate. One is the known compound trichoviridin (I). The other two, described here for the first time, are 3-(3-isocyano-6-oxabicyclo[3,1,0]hex-2-en-5-yl)acrylic acid (II) and a very unstable compound 3-(3-isocyanocyclopent-2-enylidene-)propionic acid (III). Production of these three metabolites by a random sample of wild isolates of the fungus has been examined. At least one of these isocyanides was isolated from all cultures in which the culture broth inhibited the growth of Micrococcus luteus. The relative amounts of the three isocyanides produced by individual isolates were not the same and cultures were found in which I, II, or III was the main product. The isocyanide III was produced by all wild isolates which had antibiotic activity in their culture broth, and it was present in the concentration range 2–40 mg∙L−1.

scholarly journals The results of preliminary trial experimental hybrids of winter rapeseed bred at VNIIMK by economically valuable traits

2021 ◽  
Vol 188 (4) ◽  
pp. 35-40
Author(s):  
E.A. Strelnikov ◽  
◽  
E.B. Bochkaryova ◽  
L.A. Gorlova ◽  
V.V. Serdyuk ◽  
...  
Keyword(s):  
Central Zone ◽  
Glucosinolate Content ◽  
Brassica Napus L ◽  
Hybrid Combination ◽  
Oil Crops ◽  
Russian Research Institute ◽  
Economically Valuable Traits ◽  
Winter Rapeseed ◽  
Standard Cultivar ◽  
First Time

The purpose of the research was a preliminary estimation of ten experimental hybrids of winter rapeseed (Brassica napus L.) bred in the V.S. Pustovoit All-Russian Research Institute of Oil Crops by the primary economically valuable traits. The research was conducted in the central zone of the Krasnodar region in 2019–2020. The results of the research are presented for the first time. On average for two years, nine of ten the best experimental hybrids increased by seeds yield by 0.32–0.76 t per ha both the standard cultivar Loris and the foreign hybrid Mercure. Middle seed yield of the studied hybrids varied significantly, variance range was from 4.99 t per ha (VN-3 × ОРK-10) to 5.62 t per ha (VN-4 × ОРK-20). Maximal values of seed and oil yields per a unit area were fixed for a hybrid combination VN-4 × ОРK-20. Except that, the hybrid is characterized with high weight of 1000 seeds (4.5 g). A hybrid combination VN-13 × ОРK-10 demonstrated high average by years seeds yield (5.33 t per ha) and oil yield (2.25 t per ha).Oil content in seeds and weight of 1000 seeds of this combination were at the level of the standard cultivar and the foreign hybrid. This hybrid shows the lowest glucosinolate content in seeds – 16.7 µmol/g, that is less that the foreign hybrid Mercure has by 2.3 µmol/g. The preliminary conclusion based on our researches is: the selected hybrids after confirmation of the competitive trial results can be of a great interest for production.

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