The impact of storage on the primary and secondary metabolites, antioxidant activity and digestibility of oat grains (Avena sativa)

2014 ◽  
Vol 7 ◽  
pp. 373-380 ◽  
Author(s):  
Sveto Rakić ◽  
Snežana Janković ◽  
Mirjana Marčetić ◽  
Dušan Živković ◽  
Janja Kuzevski
Keyword(s):  
Antioxidant Activity ◽  
Secondary Metabolites ◽  
Avena Sativa ◽  
Primary And Secondary Metabolites ◽  
The Impact

scholarly journals Grapevine as a Rich Source of Polyphenolic Compounds

Molecules ◽  
2020 ◽  
Vol 25 (23) ◽  
pp. 5604
Author(s):  
Iva Šikuten ◽  
Petra Štambuk ◽  
Željko Andabaka ◽  
Ivana Tomaz ◽  
Zvjezdana Marković ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Secondary Metabolites ◽  
Human Health ◽  
Phenolic Acids ◽  
Polyphenolic Compounds ◽  
Wine Quality ◽  
Primary And Secondary Metabolites ◽  
Grape Berries ◽  
Beneficial Effects ◽  
Grape Varieties

Grapes are rich in primary and secondary metabolites. Among the secondary metabolites, polyphenolic compounds are the most abundant in grape berries. Besides their important impacts on grape and wine quality, this class of compounds has beneficial effects on human health. Due to their antioxidant activity, polyphenols and phenolic acids can act as anti-inflammatory and anticancerogenic agents, and can modulate the immune system. In grape berries, polyphenols and phenolic acids can be located in the pericarp and seeds, but distribution differs considerably among these tissues. Although some classes of polyphenols and phenolic acids are under strict genetic control, the final content is highly influenced by environmental factors, such as climate, soil, vineyard, and management. This review aims to present the main classes of polyphenolic compounds and phenolic acids in different berry tissues and grape varieties and special emphasis on their beneficial effect on human health.

scholarly journals Impact of Raspberry (Rubus idaeus L.) Primocane Tipping on Fruit Yield and Quality

2017 ◽  
Vol 45 (2) ◽  
pp. 417-424 ◽  
Author(s):  
Zala ZORENC ◽  
Robert VEBERIC ◽  
Darinka KORON ◽  
Maja MIKULIC-PETKOVSEK
Keyword(s):  
Secondary Metabolites ◽  
Fruit Quality ◽  
High Performance ◽  
Great Influence ◽  
High Temperature Stress ◽  
Quality Parameters ◽  
Rubus Idaeus ◽  
Fruit Yield ◽  
Primary And Secondary Metabolites ◽  
The Impact

High temperature stress, which has been occurring more often in recent years, usually coincides with the flowering of primocane raspberries and causes a negative effect on fruit quality parameters. One of the methods of delaying raspberry flowering and fruit development to avoid high summer temperatures is tipping the young primocanes. The aim of the study was to investigate how this practice affects the fruit characteristics and primary and secondary metabolites of two primocane raspberry cultivars (‘Amira’ and ‘Polka’). For this purpose, we performed primocane tipping on two different dates in late spring and analyzed the berries from three subsequent sampling dates. High performance liquid chromatography-mass spectrometry (HPLC-MS) analyses were used for the identification and quantification of individual phenolic compounds and HPLC analyses for individual sugars and organic acids. Primocane tipping had great influence on the beginning of the harvest season of both cultivars. The impact on fruit yield was insignificant. Sampling date had a greater influence on fruit metabolite contents than did different treatments, with cultivar ‘Polka’ showing a greater response to primocane tipping than cultivar 'Amira'. Based on primary and secondary metabolites, it is difficult to say which treatment provided the best results, since dissimilar patterns were shown at different sampling dates and between cultivars. With negligible differences in fruit quality, primocane tipping was shown to be a good cultivation practice for delaying the production season of raspberries.

Profil fitokimia selada laut (Ulva lactuca) dan mikro alga filamen (Spirogyra sp) sebagai bahan alam bahari potensial dari perairan Indonesia

2019 ◽  
Vol 7 (2) ◽  
pp. 88
Author(s):  
Ari Sri Windyaswari ◽  
Elfahmi Elfahmi ◽  
Fahrauk Faramayuda ◽  
Soraya Riyanti ◽  
Oktiyas Muzaky Luthfi ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Secondary Metabolites ◽  
Green Algae ◽  
Preliminary Test ◽  
Chemical Constituent ◽  
Ulva Lactuca ◽  
Green Microalgae ◽  
Test Results ◽  
Green Macroalgae ◽  
Primary And Secondary Metabolites

<p align="center"><strong>Abstrak</strong></p><p>Perairan Indonesia merupakan habitat bagi berbagai spesies makro dan mikro alga. Selada laut <em>(Ulva lactuca)</em> adalah salah satu makroalga hijau yang secara empiris digunakan sebagai makanan oleh masyarakat Indonesia yang hidup dipesisir pantai. Pada perairan tawar, ganggang hijau (<em>Spirogyra porticalis</em>) merupakan mikroalga filamen yang berperan penting sebagai bioindikator dalam sistem akuatik. Penelitian ini bertujuan untuk mengetahui profil fitokimia dari selada laut dan ganggang hijau yang tumbuh di perairan Indonesia. Hasil pengujian kualitatif pada selada laut <em>(Ulva lactuca)</em>  menunjukkan kandungan metabolit primer  dan sekunder berturut-turut adalah karbohidrat, alkaloid, flavonoid, mono dan seskuiterpenoid. Sementara itu ganggang hijau (<em>Spirogyra porticalis</em>) mengandung karbohidrat, protein, alkaloid, flavonoid, fenolik, tannin, kuinon, mono dan seskuiterpenoid. Pola kromatogram selada laut <em>(Ulva lactuca) </em>dan  ganggang hijau (<em>Spirogyra porticalis)</em> mendeteksi aktivitas antioksidan yang dimiliki oleh senyawa- metabolit sekunder  seperti fenol, tannin, flavonoid, mono dan seskuiterpenoid yang memiliki variasi kepolaran dari semi hingga polar. Hasil uji pendahuluan aktivitas antioksidan menggunakan metode dinamolisis menunjukkan selada laut <em>(Ulva lactuca) </em>dan  ganggang hijau (<em>Spirogyra porticalis)</em> memiliki aktivitas antioksidan dan berpotensi dikembangkan sebagai obat, suplemen, eksipien farmasi dan makanan nutrisi.</p><p align="center"> </p><p>Kata kunci: selada laut <em>(Ulva lactuca),</em> ganggang hijau (<em>Spyrogyra porticalis</em>), antioksidan, bahari, Indonesia.</p><p> </p><p align="center"><strong>Abstract</strong></p><p><em>Indonesian waters are habitat for various macro and micro algae species. Sea lettuce </em><span style="text-decoration: underline;">Ulva</span> <span style="text-decoration: underline;">lactuca</span><em> is one of the green macroalgae that is empirically used as food by Indonesian people. In freshwater, green algae </em><span style="text-decoration: underline;">Spirogyra</span> <span style="text-decoration: underline;">porticalis</span><em> is filament microalgae that play an important role as bioindicators in the aquatic system. The aim of this research was to profiling the chemical constituent from native Indonesian sources,</em><span style="text-decoration: underline;"> Ulva</span> <span style="text-decoration: underline;">lactuca</span><em>  and</em> <span style="text-decoration: underline;">Spirogyra</span> <span style="text-decoration: underline;">porticalis</span><em>. The results of  </em><span style="text-decoration: underline;">Ulva</span> <span style="text-decoration: underline;">lactuca</span><em>  qualitative analysis showed the content of primary and secondary metabolites are carbohydrates, alkaloids, flavonoids, mono, and sesquiterpenoids, respectively. On the other hand, green algae </em><span style="text-decoration: underline;">Spirogyra</span> <span style="text-decoration: underline;">porticalis</span><em> carbohydrates, proteins, alkaloids, flavonoids, phenolics, tannins, quinones, mono, and sesquiterpenoids, respectively. The chromatogram pattern of sea lettuce </em><span style="text-decoration: underline;">Ulva</span> <span style="text-decoration: underline;">lactuca</span><em> and  </em><span style="text-decoration: underline;">Spirogyra</span> <span style="text-decoration: underline;">porticalis</span><em> showed the antioxidant activity caused by secondary metabolites such as phenol, tannin, flavonoids, mono and sesquiterpenoids which were various polarity. Preliminary test results of antioxidant activity with the dinamolysis method showed sea lettuce </em><span style="text-decoration: underline;">Ulva</span> <span style="text-decoration: underline;">lactuca</span><em>  and</em> <em>and green algae </em><span style="text-decoration: underline;">Spirogyra</span> <span style="text-decoration: underline;">porticalis</span><em> have antioxidant activity. It potentially developed as drugs, supplements, pharmaceutical excipients and nutritional foods.</em><em></em></p><p><em> </em></p><p><em>Keywords</em>: <em>sea lettuce </em><span style="text-decoration: underline;">Ulva</span> <span style="text-decoration: underline;">lactuca</span><em>, green microalgae </em><span style="text-decoration: underline;">Spyrogyra</span> <span style="text-decoration: underline;">porticalis</span><em>, antioxidant, marine, Indonesia, </em></p>

scholarly journals Root volatiles in plant-plant interactions II: Root terpenes from Centaurea stoebe modify Taraxacum officinale root chemistry and root herbivore growth

2018 ◽  
Author(s):  
Wei Huang ◽  
Valentin Gfeller ◽  
Matthias Erb
Keyword(s):  
Secondary Metabolites ◽  
Taraxacum Officinale ◽  
Plant Interactions ◽  
White Grub ◽  
Centaurea Stoebe ◽  
Primary And Secondary Metabolites ◽  
Herbivore Interactions ◽  
Root Herbivore ◽  
Plant Herbivore ◽  
The Impact

AbstractVolatile organic compounds (VOCs) emitted by plant roots can influence the germination and growth of neighboring plants. However, little is known about the effects of root VOCs on plant-herbivore interactions. The spotted knapeed (Centaurea stoebe) constitutively releases high amounts of sesquiterpenes into the rhizosphere. Here, we examine the impact of C. stoebe root VOCs on primary and secondary metabolites of sympatric Taraxacum officinale plants and the resulting plant-mediated effects on a generalist root herbivore, the white grub Melolontha melolontha. We show that exposure of T. officinale to C. stoebe root VOCs does not affect the accumulation of defensive secondary metabolites, but modulates carbohydrate and total protein levels in T. officinale roots. Furthermore, VOC exposure increases M. melolontha growth on T. officinale plants. Exposure of T. officinale to a major C. stoebe root VOC, the sesquiterpene (E)-β-caryophyllene, partially mimics the effect of the full root VOC blend on M. melolontha growth. Thus, releasing root VOCs can modify plant-herbivore interactions of neighboring plants. The release of VOCs to increase the susceptibility of other plants may be a form of plant offense.

UJI IMUNOSTIMULATOR DARI KOMBINASI EKSTRAK ETANOL HERBA BINARA (ARTEMISIA VULGARIS LINN) DAN EKSTRAK ETANOL DAUN PUCUK MERAH (SYZYGIUM OLEANA) DENGAN METODE HIPERSENSITIVITAS TIPE LAMBAT PADA TIKUS JANTAN

2019 ◽  
Vol 1 (2) ◽  
pp. 22-26
Author(s):  
Romauli Anna Teresia Marbun ◽  
Aminah Syarifuddin ◽  
Montysory Silalahi ◽  
Radika Bella Fista Ginting
Keyword(s):  
Antioxidant Activity ◽  
Immune System ◽  
Secondary Metabolites ◽  
Ethanol Extract ◽  
Positive Control ◽  
Artemisia Vulgaris ◽  
Chemical Screening ◽  
Chemical Content ◽  
High Antioxidant Activity ◽  
New Treatments

Diseases mediated by the immune system are difficult problems to treat such as human immunodeficiency virus (HIV) and other lethal viruses. Infections that occur in normal people are generally brief and rarely leave permanent damage. Treatment of this disease requires an aggressive and innovative approach to the development of new treatments so that it requires the role of immunomodulators to improve the immune system. A substance that acts as an enhancer or immune enhancer can be obtained by using herbs that are efficacious as immunostimulants. One of the herbs used is herbal binara (Artemisia vulgaris L) which has been studied as a potential immunomodulator with high antioxidant activity. Previous research also stated that red shoots (Syzygium oleana) were studied as potential immunomodulators with high antioxidant activity. Several other species such as Syzygium samarangense have 16 flavonoida compounds which show pharmacological immunological activity. The purpose of this study was to determine the content of secondary metabolites of ethanol extract of herbal binara (Artemisia vulgaris L.) with red shoots (Syzygium oleana) and to determine the best dose of extract from the ethanol extract of herbal binara (Artemisia vulgaris L.) with red shoots (Syzygium oleana) can reduce the volume of swelling of mouse feet. Examination of the chemical content of secondary metabolites from the ethanol extract of herbal binara (Artemisia vulgaris L.) with red shoots (Syzygium oleana) is carried out by chemical screening and characterization of simplicia and extract. The method used is the slow type hypersensitivity method. In this test the independent variable is the secondary metabolite of ethanol extract of herb binara (Artemisia vulgaris L.) with red shoots (Syzygium oleana) with four concentrations (50, 100, 200 and 400 mg / kgBB). The positive control used by Stimuno dose is 32.5 mg / kgBB

The impact of traditional plants and their secondary metabolites in the discovery of COVID-19 treatment

2020 ◽  
Vol 26 ◽  
Author(s):  
Shabana Bibi ◽  
Ayesha Sarfraz ◽  
Ghazala Mustafa ◽  
Zeeshan Ahmed ◽  
Muhammad Aurang Zeb ◽  
...  
Keyword(s):  
Secondary Metabolites ◽  
Test System ◽  
Chemical Information ◽  
System Type ◽  
The Family ◽  
Comprehensive Search ◽  
Coronavirus Infection ◽  
The Impact ◽  
First Time ◽  
Plant Sources

Background: Coronavirus Disease-2019 belongs to the family of viruses which cause a serious pneumonia along with fever, breathing issues and infection of lungs for the first time in China and later spread worldwide. Objective: Several studies and clinical trials have been conducted to identify potential drugs and vaccines for Coronavirus Disease-2019. The present study listed natural secondary metabolites identified from plant sources with antiviral properties and could be safer and tolerable treatment for Coronavirus Disease-2019. Methods: A comprehensive search on the reported studies was conducted using different search engine such as Google scholar, SciFinder, Sciencedirect, Medline PubMed, and Scopus for the collection of research articles based on plantderived secondary metabolites, herbal extracts, and traditional medicine for coronavirus infections. Results: Status of COVID-19 worldwide and information of important molecular targets involved in COVID-19 is described and through literature search, is highlighted that numerous plant species and their extracts possess antiviral properties and studied with respect to Coronavirus treatments. Chemical information, plant source, test system type with mechanism of action for each secondary metabolite is also mentioned in this review paper. Conclusion: The present review has listed plants that have presented antiviral potential in the previous coronavirus pandemics and their secondary metabolites which could be significant for the development of novel and a safer drug which could prevent and cure coronavirus infection worldwide.

Comparison Among Five Eucalyptus Species Based on Their Leaf Contents of Some Primary and Secondary Metabolites

2019 ◽  
Vol 20 (7) ◽  
pp. 573-587
Author(s):  
Alyaa Nasr ◽  
Tehmina Saleem Khan ◽  
Shi-Ping Huang ◽  
Bin Wen ◽  
Jian-Wen Shao ◽  
...  
Keyword(s):  
Secondary Metabolites ◽  
Protocatechuic Acid ◽  
Antioxidant Activities ◽  
Reducing Power ◽  
Renewable Resource ◽  
Total Phenolic ◽  
Eucalyptus Species ◽  
Primary And Secondary Metabolites ◽  
Acetone Water ◽  
Phenolic Constituents

Background: Eucalyptus belongs to the Myrtaceae family. It is the most planted hardwood forest crop worldwide, representing a global renewable resource of fiber, pharmaceuticals and energy. Objective: To compare the five species, E. maidenii, E. robusta, E. citriodora, E. tereticornis and E. camaldulensis, seeking for the richest source of nutrients and pharmaceuticals. Methodology: Eucalyptus samples were subjected to some chemical determinations for both primary and secondary metabolites to verify their nutritional and pharmaceutical importance related to different extracts. GC-MS analysis was applied to detect the presence of some individual phenolic constituents in their leaves. Results: E. robusta recorded the maximum contents of carbohydrates (40.07%) and protein (31.91%). While E. camaldulensis contained the highest contents of total phenolic compounds (46.56 mg/g), tannins (40.01 mg/g) and antioxidant activities assayed by the phosphomolybednum method (57.60 mg/g), followed by E. citridora. However, E. tereticornis exhibited the highest reducing power ability (151.23 mg/g). The GC-MS highlighted 20 phenolic constituents and antioxidants which varied in their abundance in Eucalyptus leaves, 8 individual phenolics (hydroquinone, hesperitin, pyrogallol, resorcinol, protocatechuic acid, naringenin, chlorogenic acid and catechin) were maximally recorded with E. camaldulensis and secondly, with E. citridora in case of at least 5 components. Nevertheless, gallic and quinic acids were more abundant in the leaves of E. tereticornis, which may explain its high corresponding reducing powers. Conclusion: Acetone-water combination has enhanced phenolics extraction from Eucalyptus tissues. This is the first report aiming to compare between the aforementioned Eucalyptus species highlighting either their nutritional or medicinal importance.

scholarly journals Profiles of Secondary Metabolites (Phenolic Acids, Carotenoids, Anthocyanins, and Galantamine) and Primary Metabolites (Carbohydrates, Amino Acids, and Organic Acids) during Flower Development in Lycoris radiata

Biomolecules ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 248
Author(s):  
Chang Ha Park ◽  
Hyeon Ji Yeo ◽  
Ye Jin Kim ◽  
Bao Van Nguyen ◽  
Ye Eun Park ◽  
...  
Keyword(s):  
Amino Acids ◽  
Secondary Metabolites ◽  
Organic Acids ◽  
Phenolic Acids ◽  
Flower Development ◽  
Developmental Stages ◽  
Tca Cycle ◽  
Primary And Secondary Metabolites ◽  
Hydrophilic Compounds ◽  
Tca Cycle Intermediates

This study aimed to elucidate the variations in primary and secondary metabolites during Lycorisradiata flower development using high performance liquid chromatography (HPLC) and gas chromatography time-of-flight mass spectrometry (GC-TOFMS). The result showed that seven carotenoids, seven phenolic acids, three anthocyanins, and galantamine were identified in the L. radiata flowers. Most secondary metabolite levels gradually decreased according to the flower developmental stages. A total of 51 metabolites, including amines, sugars, sugar intermediates, sugar alcohols, amino acids, organic acids, phenolic acids, and tricarboxylic acid (TCA) cycle intermediates, were identified and quantified using GC-TOFMS. Among the hydrophilic compounds, most amino acids increased during flower development; in contrast, TCA cycle intermediates and sugars decreased. In particular, glutamine, asparagine, glutamic acid, and aspartic acid, which represent the main inter- and intracellular nitrogen carriers, were positively correlated with the other amino acids and were negatively correlated with the TCA cycle intermediates. Furthermore, quantitation data of the 51 hydrophilic compounds were subjected to partial least-squares discriminant analyses (PLS-DA) to assess significant differences in the metabolites of L. radiata flowers from stages 1 to 4. Therefore, this study will serve as the foundation for a biochemical approach to understand both primary and secondary metabolism in L. radiata flower development.

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