Moderate temperature and UV‐C light processing of Uruset apple juice: Optimization of bioactive components and evaluation of the impact on volatile profile, HMF and color

2021 ◽  
Author(s):  
Seydi Yıkmış ◽  
Sıla Barut Gök ◽  
Okan Levent ◽  
Esengül Kombak
Keyword(s):  
Apple Juice ◽  
Moderate Temperature ◽  
Volatile Profile ◽  
Bioactive Components ◽  
The Impact ◽  
Uv C

scholarly journals Processing Impact on Nutritional, Antinutritional, and Phytochemical of Fenugreek Seeds (Trigonella Foenum-Graecum L.)

2021 ◽  
Vol 5 (01) ◽  
pp. 36-44
Author(s):  
Babita Adhikari ◽  
Shonu Rai
Keyword(s):  
Antioxidant Activity ◽  
Antioxidant Properties ◽  
Bioactive Components ◽  
Fenugreek Seeds ◽  
Nutritional Compounds ◽  
Trigonella Foenum Graecum L ◽  
The Impact ◽  
Reduction Percentage ◽  
Iron And Calcium

Phytate and tannin are more pronounced antinutrients limiting the nutritional quality of fenugreek. The impact of roasting (130±5°C for 7 minutes), soaking (12 hrs. at room temperature) and germination (72 hrs. at 25°C) on bioactive compounds (polyphenol and antioxidant activity), nutritional and anti-nutritional compounds (phytate and tannin) in Fenugreek were studied. Experimental data were analyzed using the software GenStat 12th Edition. Protein increased significantly (p<0.05) during roasting, soaking, and germination whereas fat decreased significantly. Iron and calcium increased during roasting whereas decreased during soaking and germination. Maximum reduction of phytate (54.55%) and tannin (66.73%) were found when fenugreek seeds were germinated (72 hours). The reduction percentage of antinutrients by soaking (12 hours) and roasting (130±5⁰C for 7 mins) was found to be a lesser effective method compared to germination. All the treatments had a significant (p<0.05) impact on their bioactive components. Phenolic content increased significantly (p<0.05) during roasting, soaking, and germination. Antioxidant activity (IC50=1.28mg dm/ml) was found to be high in the germinated samples as compared to raw, roasted, and soaked samples. Hence, Germination of fenugreek seeds for 72 hours is concluded as the most effective and promising method for the reduction of antinutrients and increasing the nutritional components, phytochemicals, and antioxidant properties.

scholarly journals Dairy-Derived and Egg White Proteins in Enhancing Immune System Against COVID-19

2021 ◽  
Vol 8 ◽  
Author(s):  
Gaber El-Saber Batiha ◽  
Mohammed Alqarni ◽  
Dina A. B. Awad ◽  
Abdelazeem M. Algammal ◽  
Richard Nyamota ◽  
...  
Keyword(s):  
Chemical Constituents ◽  
Nutritional Intervention ◽  
Bioactive Components ◽  
Multiple Organs ◽  
Cell Immunity ◽  
Egg White Proteins ◽  
Pharmaceutical Industries ◽  
Dietary Components ◽  
The Impact ◽  
Global Health Challenge

Coronavirus disease (COVID-19) is a global health challenge, caused by the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) triggers a plethora of respiratory disturbances and even multiple organs failure that can be fatal. Nutritional intervention is one of the key components toward to a proper management of COVID-19 patients, especially in those requiring medication, and should thus be considered the first-line treatment. Immuno-modulation and -stimulation are currently being explored in COVID-19 management and are gaining interest by food and pharmaceutical industries. Various dietary combinations, bioactive components, nutrients and fortified foods have been reported to modulate inflammation during disease progression. Dietary combinations of dairy-derived products and eggs are gaining an increasing attention given the huge immunomodulatory and anti-inflammatory properties attributed to some of their chemical constituents. Eggs are complex dietary components containing many essential nutrients and bioactive compounds as well as a high-quality proteins. Similarly, yogurts can replenish beneficial bacteria and contains macronutrients capable of stimulating immunity by enhancing cell immunity, reducing oxidative stress, neutralizing inflammation and regulating the intestinal barriers and gut microbiome. Thus, this review highlights the impact of nutritional intervention on COVID-19 management, focusing on the immunomodulatory and inflammatory effects of immune-enhancing nutrients.

Preliminary evaluation of the impact of preharvest UV-C on lettuce: potential for the control of Xanthomonas campestris

2020 ◽  
pp. 387-394
Author(s):  
O. Nicolas ◽  
M.T. Charles ◽  
D. Chabot ◽  
J. Aarrouf ◽  
S. Jenni ◽  
...  
Keyword(s):  
Xanthomonas Campestris ◽  
Preliminary Evaluation ◽  
The Impact ◽  
Uv C

scholarly journals Crop Load Density Affects ‘York’ Apple Juice and Hard Cider Quality

HortScience ◽  
2016 ◽  
Vol 51 (9) ◽  
pp. 1098-1102 ◽  
Author(s):  
Gregory Peck ◽  
Megan McGuire ◽  
Thomas Boudreau ◽  
Amanda Stewart
Keyword(s):  
Apple Juice ◽  
Sectional Area ◽  
Polyphenol Content ◽  
Cross Sectional ◽  
Total Polyphenol ◽  
Crop Load ◽  
Total Polyphenol Content ◽  
Yeast Assimilable Nitrogen ◽  
The Impact ◽  
Assimilable Nitrogen

To assess the impact crop load has on hard cider chemistry, ‘York’ apple (Malus ×domestica Borkh.) trees were hand thinned to three different crop loads: low [two apples per cm2 branch cross-sectional area (BCSA)], medium (four apples per BCSA), and high (six apples per BCSA). Higher crop loads produced smaller, less acidic fruit that were slightly more mature. In juice made from fruit from these treatments, the total polyphenol content did not differ at harvest, but, after fermentation, the medium crop load had 27% and the high crop load had 37% greater total polyphenol content than the low crop load. Yeast assimilable nitrogen (YAN) concentration in juice made from fruit from the low crop load treatment had 18% and 22% greater than the medium and high crop load, respectively. YAN concentrations in juice from the medium and high crop load treatments were similar. Our results provide apple growers and hard cider producers with a better understanding of how apple crop load impacts YAN concentrations in juice and total polyphenol concentrations in juice and cider.

scholarly journals New Insights into the Oenological Significance of Candida zemplinina: Impact of Selected Autochthonous Strains on the Volatile Profile of Apulian Wines

2020 ◽  
Vol 8 (5) ◽  
pp. 628 ◽  
Author(s):  
Pasquale Russo ◽  
Maria Tufariello ◽  
Raffaela Renna ◽  
Mariana Tristezza ◽  
Marco Taurino ◽  
...  
Keyword(s):  
Intraspecific Variability ◽  
Starter Cultures ◽  
Gas Chromatography Mass Spectrometry ◽  
Volatile Profile ◽  
Glycerol Production ◽  
Odor Thresholds ◽  
Volatile Profiles ◽  
The Impact ◽  
Grape Musts ◽  
Specific Impact

In this investigation, we explored the oenological significance of Candida zemplinina (syn. Starmerella bacillaris) isolates from Apulian grape musts. Moreover, we provide the first evidence of the impact of different C. zemplinina strains on the wine aromatic properties tested as monocultures. We described the diversity of C. zemplinina strains isolated from grapes and the variability of ‘volatile’ phenotypes associated with this intraspecific variability. Thirty-three isolates were characterized at strain level by PCR-based approach and, among these, 16 strains were identified and then tested by microfermentation tests carried out in grape must. Analyzed strains were low producers of acetic acid and hydrogen sulphide, not able to decarboxylate a panel of representative amino acids, whereas they showed fructophilic character and significant glycerol production. Volatile profiles of produced wines were investigated by gas chromatography–mass spectrometry. The Odor Activity Values of all molecules were calculated and 12 compounds showed values above their odor thresholds. Two selected strains (35NC1 and 15PR1) could be considered as possible starter cultures since they were able to positively affect the sensory properties of obtained wine. This report firstly supplies evidence on the strain-specific impact of different C. zemplinina strains on the final aroma of produced wines.

scholarly journals Influence of Cryoconcentration on Quality Attributes of Apple Juice (Malus Domestica cv. Red Fuji)

2020 ◽  
Vol 10 (3) ◽  
pp. 959 ◽  
Author(s):  
Patricio Orellana-Palma ◽  
Virgilio Lazo-Mercado ◽  
María Pía Gianelli ◽  
Eduard Hernández ◽  
Rommy N. Zúñiga ◽  
...  
Keyword(s):  
Apple Juice ◽  
Antioxidant Activities ◽  
Bioactive Compound ◽  
Quality Attributes ◽  
Volatile Profile ◽  
Fresh Sample ◽  
Total Polyphenol ◽  
Important Quality ◽  
Hedonic Scale ◽  
Compound Concentration

Apple juice was subjected to centrifugal block cryoconcentration (CBCC) for three cycles and their effect on the physicochemical properties, bioactive compounds, antioxidant activity, volatile profile, and sensory analysis was investigated. In the final cycle, the solutes were approximately four-fold of the initial condition (≈14 °Brix) and the color (ΔE* ≈ 25.0) was darker than the fresh juice, with bioactive compound concentration values close to 819 mg GAE/100 g d.m., 248 and 345 mg CEQ/100 g d.m. for total polyphenol, flavonoid, and flavanol content, respectively, equivalent to a retention of over 60%. DPPH and FRAP assays presented high antioxidant activities, with values of approximately 1803 μmol TE/100 g d.m. and 2936 μmol TE/100 g d.m, respectively. The cryoconcentrate showed a similar aromatic profile to the fresh juice, with 29 and 28 volatile compounds identified, respectively. The centrifugal force allowed to obtain excellent process parameters, with 73%, 0.87 (kg/kg), and 85% for efficiency, solute yield, and percentage of concentrate, respectively. Sensory evaluation shows that the odor, aroma, and flavor of fresh sample were remained in the reconstituted cryoconcentrate sample, with good qualifications (four points in a five-score hedonic scale) by trained panelists. Therefore, CBCC can preserve important quality attributes from apple juice.

scholarly journals Assessing the impact of non-thermal and thermal treatment on the shelf-life of onion juice

2019 ◽  
Vol 36 (No. 6) ◽  
pp. 480-486 ◽  
Author(s):  
Hande Demir ◽  
Mustafa Kemal Yıldız ◽  
İsmail Becerikli ◽  
Sevcan Unluturk ◽  
Zehra Kaya
Keyword(s):  
Heat Treatment ◽  
Shelf Life ◽  
Colour Change ◽  
Soluble Solids ◽  
Total Phenolic ◽  
Incident Intensity ◽  
Physicochemical Changes ◽  
Conventional Heat Treatment ◽  
The Impact ◽  
Uv C

Onion (Allium cepa L.) juice is a marinating agent for meat and fish marination and readily usable sauce for any meal that has onion in its formulation. This study aims to assess the microbiological and physicochemical changes in the onion juice processed by UV-C irradiation (0.5 mm sample depth, 30 min exposure time, 7.5 mW/cm<sup>2</sup> UV incident intensity) and conventional heat treatment (74.5°C, 12 min) during its storage. Microbiological results showed processing by UV-C irradiation or heat treatment under optimum conditions extended the microbial shelf-life of untreated onion juice by minimum 6-times. Total colour change of heat-treated samples was lower than that of untreated and UV-C treated samples for 12 weeks. Also, pH, total titratable acidity, total soluble solids content, turbidity, NEBI and total phenolic content were monitored for 12 weeks. The results of this study will form scientific infrastructure for onion juice manufacturers to decide on the processing method with respect to its shelf-life.

Antimicrobial Efficacy of Emulsified Essential Oil Components against Weak Acid–Adapted Spoilage Yeasts in Clear and Cloudy Apple Juice

2014 ◽  
Vol 77 (8) ◽  
pp. 1325-1335 ◽  
Author(s):  
MYRIAM LOEFFLER ◽  
SOPHIA BEISER ◽  
SARISA SURIYARAK ◽  
MONIKA GIBIS ◽  
JOCHEN WEISS
Keyword(s):  
Antimicrobial Activity ◽  
Essential Oil ◽  
Dimethyl Sulfoxide ◽  
Apple Juice ◽  
Yeast Cells ◽  
Antimicrobial Efficacy ◽  
Water Emulsion ◽  
Oil In Water ◽  
Oil Components ◽  
The Impact

The antimicrobial activity of oil-in-water emulsions containing dual combinations of the essential oil components cinnamaldehyde, perillaldehyde, and citral was examined against two acid-resistant yeast strains (Zygosaccharomyces bailii) in beverage systems composed of diluted clear or cloudy apple juice and in a Sabouraud dextrose broth model. Antimicrobial properties of an encapsulated oil-in-water emulsion and of essential oil components dissolved in 10% dimethyl sulfoxide were compared using plate counts and turbidity measurements. Growth curves were modulated to qualitatively assess differences in antimicrobial efficacy. The impact of the presence of a beverage emulsion without essential oils (unloaded; 5% oil and 1% modified starch, pH 3.0) on the antimicrobial efficacy also was investigated. Dual combinations of essential oil components were sufficient to completely inhibit and/or kill yeast cells in diluted apple juice and Sabouraud dextrose broth systems at very low concentrations (100 to 200 μg/ml). However, the combination of perillaldehyde and citral had the weakest antimicrobial effect; a concentration of 400 μg/ml was necessary to prevent yeast growth in beverages, and up to 800 μg/ml was required in systems to which an unloaded emulsion had been added. The antimicrobial activity of essential oil components did not differ in diluted clear and cloudy apple juices and was not affected by being added in emulsified form or dissolved in dimethyl sulfoxide as long as there was no unloaded emulsion also present. These results indicate that formulations of essential oil combinations encapsulated together in emulsions are highly effective for inhibiting and/or killing microorganisms in real beverage systems.

Sign in / Sign up

Export Citation Format

Share Document