Composition, antioxidant activity and rheological characteristics of spreadable pastes with blackberry pulp (Rubus fruticosus)

2022 ◽  
Author(s):  
Juan Alfredo Salazar-Montoya ◽  
Stephanie Hereira-Pacheco ◽  
Alfredo Cruz-Orea ◽  
Emma Gloria Ramos-Ramírez
Keyword(s):  
Antioxidant Activity ◽  
Rheological Characteristics ◽  
Rubus Fruticosus

scholarly journals Antioxidant activity of raspberry (Rubus fruticosus) leaves extract and its effect on oxidative stability of sunflower oil

2014 ◽  
Vol 52 (8) ◽  
pp. 5180-5187 ◽  
Author(s):  
Maryam Asnaashari ◽  
Raheleh Tajik ◽  
Mohammad Hossein Haddad Khodaparast
Keyword(s):  
Antioxidant Activity ◽  
Oxidative Stability ◽  
Sunflower Oil ◽  
Rubus Fruticosus

A copper-(lignin/silica/fatty acids) complex as an antioxidant/electrical conductivity agent for rubber composites (Part iii)

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Hoda Sabry Othman ◽  
Maher A. El-Hashash ◽  
S. H. El-Sabbagh ◽  
A. A. Ward ◽  
Galal A.M. Nawwar
Keyword(s):  
Electrical Conductivity ◽  
Antioxidant Activity ◽  
Design Methodology ◽  
Black Liquor ◽  
Coupling Agents ◽  
Rheological Characteristics ◽  
Rubber Composites ◽  
Content Type ◽  
Mechanical And Electrical Properties ◽  
Antioxidant Additives

Purpose Calcium and Zinc lignates were proven to be good antioxidants for rubber composites. The purpose of this paper is to evaluate the copper lignate antioxidant activity along with evaluating its electrical conductivity in rubber composites. Design/methodology/approach The antioxidant activity of the Cu-LSF complex was compared with that of standard commercial antioxidant additives as a green alternative. The rheological characteristics, thermal aging and mechanical and electrical properties were evaluated for the NBR vulcanizates containing the different antioxidants in the presence or absence of coupling agents. Findings Results revealed that the Cu-LSF complex (5 phr) can function as a compatibilizing, antioxidant and electrical conductivity agent. Originality/value The new copper complex prepared from paper-pulping black liquor of wastes could be used as a green antioxidant and electrical conductivity agent in rubber composites.

scholarly journals Study of the Effect of Thermoultrasound on the Antioxidant Compounds and Fatty Acid Profile from Blackberry (Rubus fruticosus spp) Juice

2016 ◽  
Author(s):  
J. Jesús Manríquez-Torres ◽  
J. Antonio Sánchez-Franco ◽  
Esther Ramírez-Moreno ◽  
Nelly del S. Cruz-Cansino ◽  
J. Alberto Ariza-Ortega ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Fatty Acid ◽  
Fatty Acid Profile ◽  
Antioxidant Properties ◽  
Control Sample ◽  
Antioxidant Compounds ◽  
Conservation Treatment ◽  
Rubus Fruticosus ◽  
Antioxidant Content ◽  
Oil Extract

Blackberry (Rubus fruticosus spp) is a fruit that has a significant antioxidant activity, due to its content in anthocyanins and antioxidant compounds. Emerging technologies are required as the thermoultrasound technique that ensures microbial reduction and release of compounds with antioxidant properties. The objective of this study was to evaluate changes in the antioxidant content and fatty acid profile of blackberry juice when it is subjected to conservation treatment (pasteurization and thermoultrasound). The blackberry juice and the extracted oil of blackberry juice with n-hexane (control, pasteurized and thermoultrasonicated) were evaluated in antioxidant activity, fatty acid profile and antioxidant content. The thermoultrasound juice had the highest (p < 0.05) amount of total phenols (1011 mg GAE/L), anthocyanins (118 mg Cy-3-GlE/L); antioxidant activity by ABTS (44 mg VCEAC/L) and DPPH (2665 µmol TE/L) compared to the control and pasteurized samples, as well as, as well as, oil extract of obtained of the thermoultrasound juice presented high antioxidant activity (177.54 mg VCEAC/L to ABTS and 1802.60 µmol TE/L to DPPH). The fatty acid composition of the oil extract showed the presence of myristic, linolenic, stearic, oleic, and linoleic acid, the fatty acid profile was similar in the different samples with the exception of stearic acid where this was higher in control sample. The thermoultrasound treatment can be an alternative to pasteurization treatments because keeps and releases antioxidant bioavailable compounds, preserving their fatty acids.

scholarly journals STUDY OF THE CONTENT OF ANTIOXIDANTS AND THEIR ACTIVITY IN CONCENTRATED EXTRACTS OF CRANBERRY (VACCINIUM OXYCOCCUS), SEA BUCKTHORN (HIPPOPHAE RHAMNOIDES L.), BLACKBERRY (RUBUS FRUTICOSUS), VIBURNUM (VIBURNUM OPULUS L) AND MOUNTAIN ASH (SORBUS AUCUPARIA L.

2021 ◽  
pp. 157-164
Author(s):  
Natal'ya Borisovna Eremeeva ◽  
Nadezhda Viktorovna Makarova
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Total Content ◽  
Sea Buckthorn ◽  
Biologically Active ◽  
Sorbus Aucuparia ◽  
Viburnum Opulus ◽  
Rubus Fruticosus ◽  
Dpph Method ◽  
Mountain Ash

Extracts and their concentrates can be considered as a source of biologically active ingredients of food products and as food additives to increase the consumption of useful substances of berries. The benefits gained from their use lead to the development of advanced technologies that can allow them to be extracted from the feedstock without significantly compromising the biological activity from the feedstock. In this paper, we studied the content of antioxidants and their activity in concentrated extracts of cranberry (Vaccinium Oxycoccus), sea buckthorn (Hippophae rhamnoides L.), blackberry (Rubus fruticosus), viburnum (Viburnum opulus L.) and mountain ash (Sorbus aucuparia L.) berries. For all extracts, the total content of phenolic compounds, flavonoids and anthocyanins, antioxidant activity according to the DPPH method and iron-reducing antioxidant activity (FRAP) were determined. Concentrated extracts of viburnum contain the largest amount of phenolic compounds (9.3±0.3 mol HA/l), flavonoids (1.96±0.08 mol K/l) and anthocyanins (0.26±0.02 mol CG/l) among the studied extracts. There is also a high total content of phenolic substances and flavonoids in blackberry and rowan extracts (5.7 mol HA/l, 1.33 mol K/l and 4.7 mol HA/l, 192 mol K / l, respectively). The antioxidant activity of the extract of viburnum berries showed a directly proportional dependence on the content of biologically active compounds in it: DPPH-method-2.4 mg / ml; FRAP-method-39.99 mmol Fe2+ / kg. Also, high levels were found in concentrated extracts of blackberries, sea buckthorn and mountain ash. It is the extracts of viburnum, blackberry and mountain ash that are recommended to be used in the production of food products to enrich them with biologically active substances and give them antioxidant properties. Cranberry and sea buckthorn extracts can be used in combination with other extracts.

scholarly journals Comparison of Phytochemicals and Antioxidant Activity in Blackberry (Rubus fruticosus L.) Fruits of Mutant Lines at the Different Harvest Time

2016 ◽  
Vol 4 (2) ◽  
pp. 242-251 ◽  
Author(s):  
Jaihyunk Ryu ◽  
Soon-Jae Kwon ◽  
Yeong Deuk Jo ◽  
Chang Hyun Jin ◽  
Bo Mi Nam ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Harvest Time ◽  
Rubus Fruticosus ◽  
Mutant Lines

scholarly journals FORMULASI DAN UJI AKTIVITAS GEL TABIR SURYA DARI EKSTRAK BUAH BLACKBERRY (Rubus fruticosus) SECARA IN VITRO DENGAN SPEKTROFOTOMETRI UV-VISIBEL

2020 ◽  
Vol 7 (2) ◽  
pp. 66
Author(s):  
Neni Sri Gunarti ◽  
Lia Fikayuniar
Keyword(s):  
Antioxidant Activity ◽  
Active Substance ◽  
Gelling Agent ◽  
Quality Test ◽  
Visible Spectrophotometry ◽  
Rubus Fruticosus ◽  
Neutralizing Agent ◽  
Uv Visible ◽  
Gel Formulations

<p align="center"><strong>Abstrak</strong></p><p align="center"><strong> </strong></p><p>Buah <em>Blackberry</em> (<em>Rubus fruticosus</em>) merupakan buah yang mengandung senyawa fenolik dan antosianin yang tinggi yang memiliki aktivitas sebagai antioksidan. Aktivitas antioksidan berkaitan dengan aktivitas fotoprotektif sehingga dapat dimanfaatkan dalam bentuk sediaan tabir surya seperti sediaan gel. Maka dilakukan penelitian untuk mengembangkan ekstrak <em>blackberry</em> menjadi gel tabir surya. Penelitian diawali dengan tahapan formulasi gel dengan menggunakan ekstrak <em>blackberry</em> sebagai zat aktif dengan variasi 5 konsentrasi masing-masing 0,25%; 0,5%; 0,75%; 1%; dan 1,25%. Zat tambahan yang digunakan adalah karbopol (<em>gelling agent</em>) 0,5%, gliserin (<em>humectant</em>) 10%, trietanolamin (<em>neutralizing agent</em>) secukupnya, nipagin (<em>preservative</em>) 0,18%, nipasol (<em>preservative</em>) 0,02% dan <em>aquadest </em>(<em>solvent</em>). Hasil formulasi gel ekstrak buah <em>blackberry</em> dilakukan uji kualitas sediaan meliputi uji organoleptis, pH, uji viskositas, dan daya sebar. Aktivitas tabir surya ditentukan menggunakan metode spektrofotometri uv-visibel berdasarkan serapan pada panjang gelombang yang dapat menimbulkan eritema dan pigmentasi yaitu 292,5 nm – 372,5 nm. Parameter yang digunakan berdasarkan persen transmisi eritema (%Te) ,persen Transmisi pigmentasi (%Tp) dan nilai <em>sun protecting factor</em> (SPF) terhadap 5 formulasi gel. Hasil formulasi sediaan gel menunjukkan kualitas yang baik untuk empat formula (I-IV) sedangkan formula V menunjukan nilai viskositas yang kurang baik. Sedangkan hasil dari aktivitas tabir surya formula IV dan V memiliki aktivitas tabir surya tertinggi dengan nilai SPF kategori ultra dan nilai persen transmisi eritema (%Te) dan persen transmisi pigmentasi kategori <em>total block</em> atau <em>sunblock</em>. Berdasarkan hasil penelitian dapat disimpulkan bahwa formula IV (ekstrak 1%) merupakan formula terbaik dengan kualitas sediaan dan aktivitas tabir surya terbaik dengan nilai SPF 31,2 termasuk kategori ultra sedangkan persen eritema (%Te) 0,24% dan persen pigmentasi (%Tp) 0,35% termasuk kategori <em>sunblock.</em></p><p> </p><p><strong>Kata Kunci </strong>: Buah <em>Blackberry</em>, Gel Tabir Surya , Spektrofotometri UV-Visibel.</p><p> </p><p align="center"> </p><p align="center"><strong><em>Abstract</em></strong></p><p><strong><em> </em></strong></p><p><em>Blackberry (Rubus fruticosus) is a fruit that contains high phenolic and anthocyanin compounds that have antioxidant activity. Antioxidant activity is related to a photoprotective activity so that it can be utilized in the form of sunscreen preparations such as gel preparations. Then researched to develop blackberry extract into a sunscreen gel. The study began with the stages of gel formulation using blackberry extract as an active substance with a variation of 5 concentrations of 0.25% each; 0.5%; 0.75%; 1%; and 1.25%. Additional substances used are carbopol (gelling agent) 0.5%, glycerin (humectant) 10%, triethanolamine (neutralizing agent) to taste, nipagin (preservative) 0.18%, nipasol (preservative) 0.02% and aquadest (solvent) ). The results of the formulation of blackberry extract gel were carried out the quality test of the preparations including organoleptic test, pH, viscosity test, and spreadability. Sunscreen activity is determined using the uv-visible spectrophotometry method based on absorption at wavelengths that can cause erythema and pigmentation of 292.5 nm - 372.5 nm. The parameters used are based on percent erythema transmission (% Te), percent transmission of pigmentation (% Tp), and the value of sun protecting factor (SPF) on 5 gel formulations. The results of gel formulations showed good quality for four formulas (I-IV) while formula V showed poor viscosity values. While the results of the sunscreen activity of formula IV and V have the highest sunscreen activity with the SPF value of the ultra category and the percentage value of erythema transmission (% Te) and the percentage of pigmentation transmission in the total block or sunblock category. Based on the results of the study it can be concluded that formula IV (extract 1%) is the best formula with the best quality preparations and sunscreen activity with an SPF value of 31.2 including the ultra category while the percent of erythema (% Te) is 0.24% and percent pigmentation (% Tp ) 0.35% included in the sunblock category.</em></p><p><em> </em></p><p><strong><em>Keywords: </em></strong><em>Blackberry Fruit, </em><em>Sunscreen Gel, Spectrophotometry UV-Visible<strong></strong></em></p>

Fungi Occurring on Aerial Constituents of Cultivated Blackberry ( Rubus fruticosus L.) in Norway

2003 ◽  
Vol 53 (1) ◽  
pp. 21-28 ◽  
Author(s):  
Berit Nordskog ◽  
Arne Stensvand ◽  
Nina Heiberg
Keyword(s):  
Rubus Fruticosus

Improvement of cytoprotective and antioxidant activity of Rosa canina L. and Salix alba L. by controlled differential sieving process against H2O2-induced oxidative stress in mouse primary splenocytes

2017 ◽  
Vol 87 (3-4) ◽  
pp. 191-200 ◽  
Author(s):  
Nidhal Soualeh ◽  
Aliçia Stiévenard ◽  
Elie Baudelaire ◽  
Rachid Soulimani ◽  
Jaouad Bouayed
Keyword(s):  
Antioxidant Activity ◽  
Antioxidant Activities ◽  
Biological Activities ◽  
Good Alternative ◽  
Activity Levels ◽  
Salix Alba ◽  
Rosa Canina ◽  
Free Process ◽  
Plant Powders ◽  
Sieving Process

Abstract. In this study, cytoprotective and antioxidant activities of Rosa canina (RC) and Salix alba (SA), medicinal plants, were studied on mouse primary splenocytes by comparing Controlled Differential Sieving process (CDSp), which is a novel green solvent-free process, versus a conventional technique, employing hydroethanolic extraction (HEE). Thus, preventive antioxidant activity of three plant powders of homogeneous particle sizes, 50–100 µm, 100–180 µm and 180–315 µm, dissolved directly in the cellular buffer, were compared to those of hydroethanolic (HE) extract, at 2 concentrations (250 and 500 µg/mL) in H2O2-treated spleen cells. Overall, compared to HE extract, the superfine powders, i. e., fractions < 180 µm, at the lowest concentration, resulted in greater reactive oxygen species (ROS) elimination, increased glutathione peroxidase (GPx) activity and lower malondialdehyde (MDA) production. Better antioxidant and preventive effects in pre-treated cells were found with the superfine powders for SA (i. e., 50–100 µm and 100–180 µm, both p < 0.001), and with the intermediate powder for RC (i. e., 100–180 µm, p < 0.05) versus HE extract. The activity levels of catalase (CAT) and superoxide dismutase (SOD) in pretreated splenocytes exposed to H2O2, albeit reduced, were near to those in unexposed cells, suggesting that pretreatment with the fine powders has relatively restored the normal levels of antioxidant-related enzymes. These findings supported that CDSp improved the biological activities of plants, avoiding the use of organic solvents and thus it could be a good alternative to conventional extraction techniques.

Oxalate Content and Antioxidant Activity of Different Ethnic Foods

2021 ◽  
Vol 31 (1) ◽  
pp. 73-79
Author(s):  
Azalia Avila-Nava ◽  
Isabel Medina-Vera ◽  
Pamela Rodríguez-Hernández ◽  
Martha Guevara-Cruz ◽  
Pamela K. Heredia-G Canton ◽  
...  
Keyword(s):  
Antioxidant Activity
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