The chemical composition, nutritional value and antimicrobial properties of Abelmoschus esculentus seeds

2017 ◽  
Vol 8 (12) ◽  
pp. 4733-4743 ◽  
Author(s):  
Spyridon Petropoulos ◽  
Ângela Fernandes ◽  
Lillian Barros ◽  
Ana Ciric ◽  
Marina Sokovic ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Nutritional Value ◽  
Functional Foods ◽  
Antimicrobial Properties ◽  
Abelmoschus Esculentus ◽  
Bioactive Properties

Okra seeds present significant nutritional value and antimicrobial properties and could be proposed for innovative okra products and functional foods with antimicrobial and bioactive properties.

scholarly journals The Effect of Nitrogen Fertigation and Harvesting Time on Plant Growth and Chemical Composition of Centaurea raphanina subsp. mixta (DC.) Runemark

Molecules ◽  
2020 ◽  
Vol 25 (14) ◽  
pp. 3175 ◽  
Author(s):  
Spyridon A. Petropoulos ◽  
Ângela Fernandes ◽  
Maria Inês Dias ◽  
Carla Pereira ◽  
Ricardo C. Calhelha ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Plant Growth ◽  
Nutritional Value ◽  
Antimicrobial Properties ◽  
Control Treatment ◽  
Cytotoxic Effects ◽  
Harvesting Time ◽  
Nitrogen Levels ◽  
Bioactive Properties ◽  
Varied Response

The aim of the present study was to evaluate the effect of nitrogen fertigation (0, 200, 400, and 600 ppm of total nitrogen) and harvesting time (9 March 2018 and 19 April 2018) on the plant growth, chemical composition, and bioactive properties of Centaurea raphanina subsp. mixta plants. The highest yield of fresh leaves was observed for the treatment of 200 ppm of N without compromising nutritional value. The increasing nitrogen levels resulted in an increase of α- and total tocopherols and sugars content, especially in the second harvest for tocopherols and in the first harvest for sugars. Similarly, total organic acids and oxalic acid content increased with increasing nitrogen levels in both harvests, while fatty acids composition had a varied response to the tested factors. Pinocembrin neohesperidoside and pinocembrin acetyl neohesperidoside isomer II were the most abundant phenolic compounds with the highest content being observed in the control treatment of the first and second harvest, respectively. The highest antioxidant activity was observed for the control and the 600 ppm treatments of the second harvest for the OxHLIA and TBARS assays, respectively, probably due to the high content of pinocembrin acetyl neohesperidoside isomer II and α-tocopherol, respectively. Finally, cytotoxic effects and antimicrobial properties showed a varied response depending on the treatment. In conclusion, C. raphanina subsp. mixta has low requirements of nitrogen to achieve the highest yield, while a varied response to the tested fertigation treatments and harvesting time was observed in terms of the chemical composition and the bioactive properties.

scholarly journals Nutritional value, physicochemical characterization and bioactive properties of the Brazilian quinoa BRS Piabiru

2020 ◽  
Vol 11 (4) ◽  
pp. 2969-2977 ◽  
Author(s):  
Shirley L. Sampaio ◽  
Ângela Fernandes ◽  
Carla Pereira ◽  
Ricardo C. Calhelha ◽  
Marina Sokovic ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Chemical Composition ◽  
Nutritional Value ◽  
Physicochemical Characterization ◽  
Bioactive Properties ◽  
Antioxidant And Antimicrobial Activity

Quinoa is a very interesting food due to its nutritional and chemical composition, as well as its bioactive properties, such as antioxidant and antimicrobial activity.

scholarly journals Chemical Composition and Plant Growth of Centaurea raphanina subsp. mixta Plants Cultivated under Saline Conditions

Molecules ◽  
2020 ◽  
Vol 25 (9) ◽  
pp. 2204 ◽  
Author(s):  
Spyridon A. Petropoulos ◽  
Ângela Fernandes ◽  
Maria Ines Dias ◽  
Carla Pereira ◽  
Ricardo C. Calhelha ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Plant Growth ◽  
Oxalic Acid ◽  
Nutritional Value ◽  
Trichoderma Viride ◽  
Antimicrobial Properties ◽  
Growth And Yield ◽  
Control Treatment ◽  
Harvest Time

The aim of this report was to study the effect of salinity (control: 2dS/m, S1: 4 dS/m and S2: 6 dS/m) and harvest time (first harvest on 9 May 2018 and second harvest on 19 April 2018) on the growth and the chemical composition of Centaurea raphanina subsp. mixta plants. The plants of the first harvest were used for the plant growth measurements (fresh weight and moisture content of leaves, rosette diameter, number and thickness of leaves), whereas those of the second harvest were not used for these measurements due to the flowering initiation, which made the leaves unmarketable due to their hard texture. The results of our study showed that C. raphanina subsp. mixta plants can be cultivated under mild salinity (S1 treatment) conditions without severe effects on plant growth and yield, since a more severe loss (27.5%) was observed for the S2 treatment. In addition, harvest time proved to be a cost-effective cultivation practice that allows to regulate the quality of the final product, either in edible form (first harvest) or for nutraceutical and pharmaceutical purposes as well as antimicrobial agents in food products. Therefore, the combination of these two agronomic factors showed interesting results in terms of the quality of the final product. In particular, high salinity (S2 treatment) improved the nutritional value by increasing the fat, proteins and carbohydrates contents in the first harvest, as well as the tocopherols and sugars contents (S1 and S2 treatments, respectively) in the second harvest. In addition, salinity and harvest time affected the oxalic acid content which was the lowest for the S2 treatment at the second harvest. Similarly, the richest fatty acid (α-linolenic acid) increased with increasing salinity at the first harvest. Salinity and harvest time also affected the antimicrobial properties, especially against Staphylococcus aureus, Bacillus cereus and Trichoderma viride, where the extracts from the S1 and S2 treatments showed high effectiveness. In contrast, the highest amounts of flavanones (pinocembrin derivatives) were detected in the control treatment (second harvest), which was also reflected to the highest antioxidant activity (TBARS) for the same treatment. In conclusion, C. raphanina subsp. mixta plants seem to be tolerant to medium salinity stress (S1 treatment) since plant growth was not severely impaired, while salinity and harvesting time affected the nutritional value (fat, proteins, and carbohydrates) and the chemical composition (tocopherols, sugars, oxalic acid, fatty acids), as well as the bioactive properties (cytotoxicity and antimicrobial properties) of the final product.

Hemp seeds, flaxseed and açaí berries: Health benefits and nutritional importance with emphasis on the lipid content

2021 ◽  
Vol 17 ◽  
Author(s):  
Pedro Magalhães ◽  
Rosário M. Domingues ◽  
Eliana Alves
Keyword(s):  
Fatty Acids ◽  
Chemical Composition ◽  
Nutritional Value ◽  
Functional Foods ◽  
Essential Fatty Acids ◽  
Antioxidant Properties ◽  
Beneficial Effects ◽  
Plant Seeds ◽  
General Chemical ◽  
Nutritional Importance

Background: Some plant seeds and berries have gained increased recognition due to their wide variety of bioactive compounds. Many of these foods are rich in lipids with high nutritional value, of which n-3 and n-6 essential fatty acids stand out. However, knowledge of these foodstuffs’ chemical composition and biological activity and their value as a source of healthy lipids is far from being fully explored. Objective and Methods: The benefits of the intake of hemp seeds, flaxseed and açaí berries, considered functional foods, have been compiled in this review. Likewise, their general chemical composition will be described to evaluate their relevance in a healthy diet, highlighting their lipid components and nutritional lipid indices. Results and Conclusion: The fibres and essential fatty acids of hemp seeds and flaxseed and the antioxidant properties of açaí berries provide them protective roles against several chronic non-communicable diseases and represent significant beneficial effects that add value to these healthy natural products. More research is needed to deepen the knowledge on their lipids’ molecular composition and bioactivity.

scholarly journals Natural Probiotics and Nanomaterials: A New Functional Food

2021 ◽  
Author(s):  
Ilza Fernanda Barboza Duarte ◽  
Naianny Lívia Oliveira Nascimento Mergulhão ◽  
Valdemir da Costa Silva ◽  
Laisa Carolina Gomes de Bulhões ◽  
Irinaldo Diniz Basílio Júnior ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Functional Food ◽  
Nutritional Value ◽  
Functional Foods ◽  
New Products ◽  
Biological Properties ◽  
Degenerative Diseases ◽  
Beneficial Role ◽  
The Stability ◽  
Potential Tool

Natural probiotics are functional foods with several biological properties and nutritional value inherent to their chemical composition and can play a potentially beneficial role in reducing the risk of chronic degenerative diseases. In order to improve the stability of these compounds, increase the encapsulating power, delay oxidation, increase their effectiveness, control their release and improve the bioavailability of their combination with nanomaterials is a potential tool in the food area enabling the development of new products with functional and nutraceutical characteristics. In addition, the study of nanomaterials in natural probiotics is rarely reported in the literature, being an area of paramount importance in the development of new functional foods. Therefore, in this chapter, a review of nanomaterials’ use in natural probiotics will be addressed to specify their advantages and methodologies of preparation and characterization.

Population Study on the Impact Food Chemical Composition on Patients with Non-Alcoholic Fatty Liver Diseases

2018 ◽  
Vol 69 (4) ◽  
pp. 961-964
Author(s):  
Andrei Vasile Olteanu ◽  
Georgiana Emmanuela Gilca Blanariu ◽  
Gheorghe Gh. Balan ◽  
Dana Elena Mitrica ◽  
Elena Gologan ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Fatty Liver ◽  
Nutritional Value ◽  
Liver Steatosis ◽  
Saturated Fat ◽  
Control Group ◽  
Healthy Population ◽  
Alcoholic Fatty Liver ◽  
Major Interest ◽  
The Impact

Non-alcoholic fatty liver disease (NAFLD) has become of major interest worldwide, it is estimated that more than 20% of the general population suffer from liver steatosis. NAFLD is highly associated with metabolic risk factors like type 2 diabetes mellitus, obesity and dyslipidemia, the patients diagnosed with NAFLD should adopt a high fiber low calorie diet, with reduced saturated fat and carbohydrates content, leading to weight loss and improvement of metabolic profile. Our study is aiming to shape the profile of the patient interested in being informed related to food quality and chemical composition and to evaluate the aspects on the food products label which are important for the customer. Between June 2017 and December 2017, 83 patients diagnosed with NASH were included in the study, representing the study group, while 33 subjects, without metabolic syndrome or digestive diseases, selected from patient list belonging to two general practitioners, constituted the control group. Related to the interest of being informed about the chemical composition and nutritional value of the products bought, the study showed a low interest for the provided information on nutritional value. lack of confidence in the provided information and complexity of the information are understandable, the high number of subject reasoning through lack of immediate clinical benefit is surprising. Among the healthy population the willingness to pay attention to this aspect is extremely low.

Extraction of Essential Oils from Medicinal Plants and their Utilization as Food Antioxidants

2020 ◽  
Vol 26 (5) ◽  
pp. 519-541 ◽  
Author(s):  
Giovanna Ferrentino ◽  
Ksenia Morozova ◽  
Christine Horn ◽  
Matteo Scampicchio
Keyword(s):  
Chemical Composition ◽  
Medicinal Plants ◽  
Beneficial Effect ◽  
Essential Oils ◽  
Bioactive Compounds ◽  
Antimicrobial Properties ◽  
Food Products ◽  
Human Diseases ◽  
Present Review ◽  
Green Technologies

Background: The use of essential oils is receiving increasing attention worldwide, as these oils are good sources of several bioactive compounds. Nowadays essential oils are preferred over synthetic preservatives thanks to their antioxidant and antimicrobial properties. Several studies highlight the beneficial effect of essential oils extracted from medicinal plants to cure human diseases such as hypertension, diabetes, or obesity. However, to preserve their bioactivity, the use of appropriate extraction technologies is required. Method: The present review aims to describe the studies published so far on the essential oils focusing on their sources and chemical composition, the technologies used for their recovery and their application as antioxidants in food products. Results: The review has been structured in three parts. In the first part, the main compounds present in essential oils extracted from medicinal plants have been listed and described. In the second part, the most important technologies used for extraction and distillation, have been presented. In detail, conventional methods have been described and compared with innovative and green technologies. Finally, in the last part, the studies related to the application of essential oils as antioxidants in food products have been reviewed and the main findings discussed in detail. Conclusions: In summary, an overview of the aforementioned subjects is presented by discussing the results of the most recent published studies.

scholarly journals The Role of High-Resolution Analytical Techniques in the Development of Functional Foods

2021 ◽  
Vol 22 (6) ◽  
pp. 3220
Author(s):  
Álvaro Fernández-Ochoa ◽  
Francisco Javier Leyva-Jiménez ◽  
María De la Luz Cádiz-Gurrea ◽  
Sandra Pimentel-Moral ◽  
Antonio Segura-Carretero
Keyword(s):  
High Resolution ◽  
Functional Foods ◽  
Intervention Studies ◽  
Analytical Techniques ◽  
Nutritional Intervention ◽  
Bioactive Properties ◽  
Metabolic Reactions ◽  
Bioactive Potential ◽  
Endogenous Metabolites

The approaches based on high-resolution analytical techniques, such as nuclear magnetic resonance or mass spectrometry coupled to chromatographic techniques, have a determining role in several of the stages necessary for the development of functional foods. The analyses of botanical extracts rich in bioactive compounds is one of the fundamental steps in order to identify and quantify their phytochemical composition. However, the compounds characterized in the extracts are not always responsible for the bioactive properties because they generally undergo metabolic reactions before reaching the therapeutic targets. For this reason, analytical techniques are also applied to analyze biological samples to know the bioavailability, pharmacokinetics and/or metabolism of the compounds ingested by animal or human models in nutritional intervention studies. In addition, these studies have also been applied to determine changes of endogenous metabolites caused by prolonged intake of compounds with bioactive potential. This review aims to describe the main types and modes of application of high-resolution analytical techniques in all these steps for functional food development.

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