scholarly journals The Influence of the Extraction Conditions of Blackthorn (Prunus spinosa) Fruits and Leaves on the Yield of Phenolic Compounds

Author(s):  
Nino Gamkrelidze ◽  
◽  
Giorgi Kvartskava ◽  

Plant extracts used in food production significantly improve the quality of food. Chemical composition is the main prerequisites for the final use of plant extracts. The chemical composition of the extracts is affected by the extraction method and conditions - temperature, duration and solvent. On the basis of experimental data optimal conditions for the extraction of phenolic compounds from the fruits and leaves of blackthorn (Prunus spinosa) were selected. Among the extraction methods used in the experiment, the highest content of phenolic compounds in obtained extracts was observed during the ultrasonic extraction. A mixture of 0.25 parts of water and 0.75 parts of 96% ethanol showed best results from different volume ratios of water and ethanol. The optimal extraction time was 90 minutes. And the optimum temperature is 45°C. The total content of phenolic compounds in the extracts obtained by the abovementioned method amounted is 35.62±0.17 mgg -1(dry weight) for blackthorn fruits and 44,76 ± 0.08mgg -1(dry weight) for the leaves.

2018 ◽  
Vol 19 ◽  
pp. 120-130
Author(s):  
Nurul Suhada Ismail

The explosion of technology allows more manufacture food and variety in the market. However, the massive quantity of food is not essential measure of economic progress because the quality of food is more important when producing food. In realizing food quality along with food quantities, various legal issues related to food security have been arisen. Thus, this paper will be examine the legal issues related to food security from the Islamic perspective worldview. Using a study of documents released by the Food and Agriculture Organization (FAO) and content analysis, there are several legislative issues that have been found regarding food security. Such issues include aspects of food production, exploitation of natural resources, trade, and rights to the food. The apparent impact of these issues has undermined food security and food access, thus prompting food security in various parts of the world. Through an analysis of Islamic worldview, this paper presents the preservation of habluminallah and habluminannas relationships as a basis for addressing the issues discussed. Ledakan teknologi membolehkan bahan makanan dihasilkan dengan lebih banyak dan pelbagai di pasaran. Namun demikian, kuantiti makanan yang banyak bukan ukuran kemajuan ekonomi yang hakiki kerana kualiti makanan lebih utama untuk diambil kira dalam menghasilkan makanan. Dalam merealisasikan kualiti seiring dengan kuantiti makanan, pelbagai isu perundangan berkaitan sekuriti makanan telah timbul. Menyedari perkara berkenaan, makalah ini akan meneliti isu perundangan yang berkaitan sekuriti makanan daripada perspektif tasawur Islam. Dengan menggunakan kajian ke atas dokumen yang dikeluarkan oleh Organisasi Makanan dan Pertanian (Food and Agriculture Organization) (FAO) dan analisis kandungan, terdapat beberapa isu perundangan berkaitan sekuriti makanan yang ditemui. Isu tersebut merangkumi aspek pengeluaran makanan, eksploitasi sumber alam, perdagangan, serta hak terhadap makanan. Kesan ketara isu-isu tersebut telah menjejaskan jaminan keselamatan makanan dan akses makanan sekali gus menggugah sekuriti makanan di pelbagai bahagian dunia. Melalui analisis daripada tasawur Islam, makalah ini mengemukakan pemeliharaan hubungan habluminallah dan habluminannas sebagai asas mengatasi isu-isu yang dibincangkan.


2020 ◽  
Vol 99 (11) ◽  
pp. 1308-1314
Author(s):  
Irina V. May ◽  
Svetlana A. Vekovshinina ◽  
Svetlana V. Kleyn ◽  
Nadejda V. Nikiforova

Introduction. In conditions of the high density of urban development, efficient use of municipal lands is of particular relevance. Food production facilities make up a significant sector of many cities’ economy, including centers of ferrous and non-ferrous metallurgy, chemistry, petrochemistry, mining, etc., i.e., settlements where significant areas are limited in use by sanitary protection zones. Resolution of the Government of the Russian Federation dated March 3, 2018, No. However, such a justification is a scientific and methodological problem since there is no regulatory consolidation of the procedure. The purpose of the study was to develop and practically test methodological approaches to justification the admissibility (inadmissibility) of placing a food production facility in the sanitary protection zone of enterprises in other line of the industry. Material and methods. Design and technical documentation were studied on sources of data on air quality at the industrial site and indoors, and the quality of food products. Authors performed hygienic assessment of the safety and quality of air, raw materials, water, and manufactured food products for compliance with sanitary requirements and standards. When analyzing potential threats to contamination of food products, a mechanism was used to isolate critical points of the technological process. Results. An algorithm for the formation of the evidence base of the absence (presence) of the negative impact on food quality, the fact of the location of the production facility in the sanitary protection zone of a large industrial enterprise on the quality of food products is proposed. On the example of the production of juices from natural concentrated products, each step of the algorithm has been worked out: analysis of the technological process of production; hazard identification, instrumental measurements of the quality of environmental objects and raw materials and products. Conclusion. The proposed algorithm allows creating a reliable evidence base for deciding on the admissibility (inadmissibility) of the location of the food production facility in the sanitary protection zone of the enterprise with a different type of activity, tested in real conditions of a large industrial unit. The algorithm can be used as a base for the widespread use and further improvement.


Separations ◽  
2021 ◽  
Vol 8 (9) ◽  
pp. 132
Author(s):  
Hong Yang ◽  
Li-Bo Wang ◽  
Ya-Ping Guo ◽  
Ya-Li Wang ◽  
Xiao-Xiang Chen ◽  
...  

The immature epicarps of Juglans mandshurica and Juglans regia have been used as folk medicine for the treatment of cancer in China. Other parts of the J.mandshurica plant, including leaves, branches, barks, and stems, have reported antitumor activities. We previously found that various diarylheptanoids and phenolic compounds isolated from J. mandshurica epicarps show significant antitumor activities. However, there are no reports of quantitative analysis of diarylheptanoids and phenolic compounds of J. mandshurica. In this study, a validated quantitative method, based on ultraperformance liquid chromatography coupled with triple-quadrupole tandem mass spectrometry, was employed to determine the contents of eight diarylheptanoids and seven phenolic compounds in the epicarps of J. mandshurica during different growth periods, in different parts of the plant, and in the epicarps of two Juglans species. The most successful J. mandshurica epicarp harvesting time fell between Day 12 and Day 27. The leaves of J. mandshurica showed potential for medical use as they had the highest content of the 15 compounds (3.399 ± 0.013 mg/g). We showed for the first time that the total content of diarylheptanoids in J. mandshurica is higher than that in J. regia, though, conversely, J. regia has higher contents of phenolic compounds. The method developed in this study is practical and simple and can be applied for quantitative analysis for evaluating the intrinsic quality of J. mandshurica.


2016 ◽  
Vol 14 (1) ◽  
Author(s):  
Laryssa H. R. Pazianoto ◽  
Vivian de M. Cionek ◽  
Fábio N. O. Fogaça ◽  
Evanilde Benedito

ABSTRACT Diet, energy density (ED) and relative condition factor (Kn ) were used to investigate the energetic assimilation of the invasive fish Hemiodus orthonops under different environmental condition of the upper rio Paraná floodplain. Samples were taken in June and September 2013 and 2014. Nutrient content was determined for sediment. The diet was combined in the Food Index (IAi%), ED was expressed in Kcal/g of dry weight and Kn was calculated by: Kn = Wt/We, where Wt is the total weight and We the expected weight. Detritus/sediment prevailed in the stomachs of specimens from Ivinhema and Baia, while Algae was the main item in Paraná, reflecting the resource availability. ED and Kn from Ivinhema specimens were the greatest, consequence of the quality of food and lower spent on searching and handling food. The Paraná specimens showed lower ED values, but higher Kn values, due to algae consumption, a nutrient-rich resource. Baia presented high aluminum concentration on the sediment and the lower pH values, which contribute to reduce the nutritional value of the detritus and the ED and Kn values of their specimens. In conclusion, H.orthonops is capable to take advantage of the resources availability in the different environments, ensuring their establishment.


2018 ◽  
Vol 34 (5) ◽  
pp. 2397-2403
Author(s):  
Fuad Al-Rimawi ◽  
Fadi Alakhras ◽  
Wael A. Al-Zereini ◽  
Hammad K. Aldal'in ◽  
Saleh Abu-Lafi ◽  
...  

Three medicinal plants grown wild in Jordan, namely Achillea santolina L, Achillea fragrantisimma, Asteriscus graveolens (Forssk) Less, were extracted with ethyl acetate by continuous shaking at room temperature for three days. The antibacterial activity of the crude extract was evaluated. The extracts were analyzed for their phenolic and flavonoids content by HPLC-PDA. The HPLC analysis of the plant extracts revealed the presence of flavonoids and phenolic compounds in the three plant extracts. Results revealed a strong antibacterial activity of A. graveolens against three bacterial strains (B. subtilis, E. coli, and S.aureus) while A. fragrantissima inhibited the growth of B. subtilis. Bioactivities were attributed mainly to the immense content of phenol-based compounds in plants.


2021 ◽  
Vol 74 (3) ◽  
pp. 9715-9722
Author(s):  
Stalin Santacruz ◽  
Pablo Medrano

Cocoa pod-husk is a by-product of cocoa processing, underutilized despite its phenolic compounds that can be an alternative to preserve the microbiological quality of food. The aim of this work was to evaluate the in vitro inhibitory activity of phenolic compounds from the cocoa pod-husk against Salmonella  spp, which is commonly found in fresh cheese produced in Manabí, Ecuador; as well as the effect on the sensory characteristics of cheese after immersion in a solution of phenolic compounds. In vitro microbiological analyzes of the inhibitory activity of phenolic compounds, showed that the concentrations 1 and 1.5% had the highest zone of inhibition against Salmonella spp., with mean diameters of 10.67 and 11.8 mm, respectively. On the other hand, the growth curve of Salmonella spp. indicated that 2 h were required for complete inhibition of bacteria by phenolic compounds at concentrations of 1 and 1.5%. For the sensory analyzes of cheese treated with phenolic compounds, 56.3% of the panelists accredited the firmness and odor with “I like it”, while 37.5% of the panelists qualified the color of the cheese with “I neither like nor dislike”. Firmness and odor had higher values of acceptance than color. For 25 and 12.5% of the panelists, firmness and odor were rated as “I like it a lot”, respectively, and 56.3% of the panelists conferred the label of “I like it” to both attributes. Cheese color was the lowest rated attribute, given that 12.5% of the panelists chose “I like it a lot” and 25% for “I like it”.


Rekayasa ◽  
2019 ◽  
Vol 12 (1) ◽  
pp. 75
Author(s):  
Iffan Maflahah ◽  
Arinda Venska Nazalina ◽  
Muhammad Fakhry

<p><strong>ABSTRAK</strong></p><p><em>Tahu merupakan produk olahan makanan yang berasal dari kedelai. Tahu sering kita jumpai mulai di warung sederhana hingga pusat perbelanjaan modern, harga yang relatif terjangkau membuat salat satu olahan yang terbuat dari kedelai ini menjadi makanan favorit bagi semua kalangan. Evaluasi sarana produksi pangan industri tahu di UD Sumber Makmur bertujuan agar perusahaan mengetahui cara menjaga keamanan pangan sarana produksi dengan berpedoman pada Good Manufacturing Practices (GMP). GMP sendiri merupakan pedoman cara berproduksi pangan supaya produsen pangan memenuhi persyaratan-persyaratan yang telah ditentukan untuk menghasilkan produk pangan yang bermutu dan aman dikonsumsi sesuai dengan tuntutan konsumen. Adapun 14 aspek GMP yang harus diterapkan pada perusahaan pangan. </em><em>Hasil penilaian mutu sarana pengolahan pangan di UD Sumber Makmur masuk dalam kategori IV yaitu Kurang, dengan jumlah ketidaksesuaian untuk kategori minor sebanyak 1 penyimpangan, kategori mayor 2 penyimpangan, kategori serius 3 penyimpangan, dan untuk kategori kritis 1 penyimpangan. </em></p><p><em>Kata Kunci: </em>Tahu, UD Sumber Makmur, <em>Good Manufacturing Practices</em> (GMP)<em></em></p><p align="center"><strong>Evaluation of Tofu Industry Production Facilities at UD Sumber Makmur</strong></p><p><strong>ABSTRACT</strong></p><p><em>Tofu is a processed food product derived from soybeans. Tofu that we often find everything from simple stalls to modern shopping centers, the relatively affordable price of making one processed prayers made from soybeans is a favorite food for all people. The evaluation of the food production facilities of the tofu industry at UD Sumber Makmur aims to let the company know how to maintain food safety of production facilities by referring to Good Manufacturing Practices (GMP). GMP itself is a guideline on how to produce food so that food producers meet the specified requirements to produce quality food products that are safe for consumption in accordance with consumer demands. The 14 aspects of GMP must be applied to food companies. The results of the assessment of the quality of food processing facilities in UD Sumber Makmur fall into category IV, namely Less, with the number of nonconformities for minor categories as much as 1 deviation, major category 2 deviations, serious categories 3 deviations, and for critical categories 1 deviation.</em></p><p><em>Keywords: Tofu, UD Sumber Makmur, Good M</em><em>anufacturing Practices (GMP)</em><em></em></p>


2020 ◽  
Vol 185 ◽  
pp. 04066
Author(s):  
Zhenyu Lei

The quantity and quality of food additives directly affect the safety of food. Only by more scientific and accurate regulation of the use of food additives, can we eliminate a series of problems of food safety caused by the abuse of unreasonable and harmful food additives. As the first line of defense for food safety, the hygienic index of food production must be firmly controlled Good, can provide a solid guarantee for food safety management; the traceability performance of food production and circulation can better make food production run in the sun, and ensure that every link can be supervised and traceable from planting, production and processing, to consumers; strengthen the legislative supervision of food production, circulation and other links, so that food safety supervision has laws to abide by, laws to be prosecuted, and indeed guarantee Rights and interests of consumers


2021 ◽  
Vol 8 (10Years) ◽  
pp. 14-15
Author(s):  
Pedro Oliveira

The State of Food Security and Nutrition in the World program for sustainable development presents a transformative vision, recognizing that our planet is changing, bringing with it new challenges that must be overcome if we want to live in a world without hunger, food insecurity, and malnutrition, in any of its forms. At the same time, there is a direct relationship between the quality of food and health. The production of high-quality food in high quantities is an emerging concern. However, the challenges are enormous, as demonstrated by the following: i) there is a demand for food production, occurring amid a declining rural labor force; ii) there is an increasing amount of raw material production (e.g., biomass generated) for a market that has been only mildly explored; iii) there is a lack of simpler and cheaper analytical alternatives to apply in undeveloped countries, whose developments is highly dependent of agriculture; and iv) there is the necessity to adopt more efficient and sustainable production methods that are adapted to climate change. On almost all these fronts, the field of analytical chemistry has a lot to contribute.


2020 ◽  
Vol 16 (4) ◽  
pp. 383-393
Author(s):  
Fernanda W.F. Bezerra ◽  
Priscila do N. Bezerra ◽  
Mozaniel S. de Oliveira ◽  
Wanessa A. da Costa ◽  
Gracialda C. Ferreira ◽  
...  

Background: Croton species are widely spread around the world, and present a varied chemical composition distributed in many classes of secondary metabolites, such as terpenoides, alkaloids, phenolic compounds and phenylpropanoids. These compounds can be obtained by different extraction methods, and more recently, with supercritical fluids. The crude and isolated extracts may have applications due to their biological activities in animals and humans. Methods: The text was written based on literature data from 1996 onwards. Results: The research showed in a concise way the botanical and taxonomic aspects of Croton and the success of its application is in studies related to the biological activities of the plant parts. It was also related to the chemical composition of its extracts and isolated compounds, obtained by many methods. Conclusion: In summary, the review feature studies reported the use of extracts and isolated Croton compounds due to their biological effects with antioxidant, antimicrobial, anti-inflammatory, neuroprotective, antitumor, anticancer, cytotoxic, insecticidal and allelopathic activities, with potential application in food, cosmetics, pharmaceuticals, and agrochemicals products.


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