scholarly journals Bioactive compounds in gladiolus flowers

2021 ◽  
Author(s):  
Alexandra Goede de Souza ◽  
Eduardo Affonso Jung ◽  
Vinícius Petermann Benedicto ◽  
Leosane Cristina Bosco
Keyword(s):  
Titratable Acidity ◽  
Soluble Solids ◽  
Total Phenolic ◽  
Anthocyanin Content ◽  
Cut Flowers ◽  
Flavonoid Content ◽  
Total Titratable Acidity ◽  
Total Antioxidant ◽  
Relationship Of ◽  
The Relationship

Abstract Flowers have received special attention not only for their ornamental nature but also for their nutraceutical, cosmetic, aromatic, and culinary properties. This study aimed to characterize physicochemical attributes and the antioxidant capacity of flowers of four gladiolus cultivars. The cultivars used were White Friendship, Rose Supreme, Jester, and T704. We analyzed the content of total soluble solids (SS), total titratable acidity (TA), SS/TA ratio, pH, vitamin C, anthocyanin, flavonoids, total phenolic compounds (TPC), total antioxidant activity (TAA), and the relationship of TPC with flavonoids and TAA for each cultivar. The results showed that the Jester flowers had the lowest TA and highest SS/TA ratio, indicating the best flavor. Jester also had the highest flavonoid content, similarly to the White Friendship and Rose Supreme. As a result, these cultivars have flowers with higher TPC and TAA content than T704. The anthocyanin content was the characteristic attribute of cultivar T704, due to its purple pigmentation. Gladiolus flowers, traditionally used in landscaping and as cut flowers, have the potential for use in human nutrition, particularly the White Friendship, Rose Supreme, and Jester cultivars.

scholarly journals Fermentation Condition and Quality Evaluation of Pineapple Fruit Wine

Fermentation ◽  
2021 ◽  
Vol 8 (1) ◽  
pp. 11
Author(s):  
Antika Boondaeng ◽  
Sumaporn Kasemsumran ◽  
Kraireuk Ngowsuwan ◽  
Pilanee Vaithanomsat ◽  
Waraporn Apiwatanapiwat ◽  
...  
Keyword(s):  
Antioxidant Activities ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Total Phenolic ◽  
Pineapple Juice ◽  
Volatile Acidity ◽  
Total Titratable Acidity ◽  
Total Antioxidant ◽  
Pineapple Fruit ◽  
The Impact

This research investigated the impact of the concentration of pineapple juice on the characteristics of pineapple wine during fermentation with Saccharomyces cerevisiae var. burgundy. Three ratios of fresh pineapple juice to water were mixed to obtain three treatments, which were T1—2:1, T2—1:1, and T3—1:2. The °Brix and pH of all pineapple juice and water ratios were adjusted to 25 and 4, respectively. The results showed that changes in alcohol, pH, Total Soluble Solids (TSS), Total Titratable Acidity (TAA, as citric acid), and Volatile Acidity (VA, as acetic acid) during the 10-day fermentation among three treatments were significantly different. The highest alcohol content was obtained from the 2:1 with values of 10.71% (v/v). The mixed ratio at 1:1 and 1:2 obtained the alcohol value of 9.61 and 8.35% (v/v), respectively. After ten days of fermentation, TSS, pH values, TAA, and VA were in the range of 9.7–13 °Brix, 3.56–3.82, 0.384–0.448, and 0.0013–0.0016, respectively. However, the appearance, aroma, and taste of all ratios were not significantly different. Sweetness and overall liking, wine with pineapple juice/water ratio at 2:1 had the highest score (p ≤ 0.05). The total antioxidant activities determined by DPPH and total phenolic content were 0.91 mmol/L TE and 365.80 mg/L GAE, respectively, as confirmed by FTIR spectral analyses.

scholarly journals Effects of Nitrogen Fertilization on Subtropical Peach Fruit Quality: Organic Acids, Phytochemical Content, and Total Antioxidant Capacity

2017 ◽  
Vol 142 (5) ◽  
pp. 393-404 ◽  
Author(s):  
Tripti Vashisth ◽  
Mercy A. Olmstead ◽  
James Olmstead ◽  
Thomas A. Colquhoun
Keyword(s):  
Antioxidant Capacity ◽  
Fruit Quality ◽  
Phenolic Content ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Anthocyanin Content ◽  
Flavonoid Content ◽  
Total Soluble Solids ◽  
Phytochemical Composition ◽  
Total Antioxidant

Producing temperate-zone fruit crops in subtropical environments requires alterations in fertilizer application and rates. Nitrogen (N) is a critical mineral nutrient required in high amounts by the tree; however, it is often over- or under-applied for optimal fruit quality and can affect the phytochemical composition of fruits. The effects of different N fertilizer rates and harvest date on total phenolic content, total flavonoid content, total anthocyanins, total antioxidant capacity, total soluble solids, titratable acidity, and organic acids (citric and malic acid) of two subtropical peach (Prunus persica) cultivars, TropicBeauty and UFSharp, were investigated. N rate did not affect total soluble solids in ‘TropicBeauty’, although total soluble solids decreased as N rate increased in ‘UFSharp’. Titratable acidity and organic acid content was significantly higher in ‘UFSharp’ as compared with ‘TropicBeauty’, although there was no effect of N rate on titratable acidity. An overall increase in phenolic content, flavonoid content, anthocyanins, and antioxidant capacity were observed with decreasing N rates in both subtropical peach cultivars. A stronger genotype × N treatment interaction was observed for ‘TropicBeauty’ for phenolic content, flavonoid content, and antioxidant capacity than for ‘UFSharp’. In ‘TropicBeauty’, among the treatments with no N and highest N, an almost 100% increase in phenolic content, 200% increase in flavonoid content, 50% increase in anthocyanin content, and 80% increase in antioxidant activity was observed. A positive correlation among phenolic content, flavonoid content, and antioxidant capacity was observed in both ‘TropicBeauty’ and ‘UFSharp’. Late harvest date decreased phenolic content in ‘TropicBeauty’, ranging from 6% to 32% among different N treatments. Late harvest increased anthocyanin content as compared with fruit that were harvested on early dates. The results suggest that subtropical peach phytochemical composition can be affected by different cultivars and tree age, and can be manipulated with cultural practices like N fertilization and harvest time to produce fruit with altered or desired nutritional composition for consumers.

scholarly journals Effect of Freeze Crystallization on Quality Properties of Two Endemic Patagonian Berries Juices: Murta (Ugni molinae) and Arrayan (Luma apiculata)

Foods ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 466
Author(s):  
María Guerra-Valle ◽  
Siegried Lillo-Perez ◽  
Guillermo Petzold ◽  
Patricio Orellana-Palma
Keyword(s):  
Process Parameters ◽  
Soluble Solids ◽  
Total Phenolic ◽  
Anthocyanin Content ◽  
Flavonoid Content ◽  
Total Polyphenol ◽  
Total Anthocyanin ◽  
Quality Properties ◽  
Total Anthocyanin Content ◽  
Ugni Molinae

This work studied the effects of centrifugal block freeze crystallization (CBFC) on physicochemical parameters, total phenolic compound content (TPCC), antioxidant activity (AA), and process parameters applied to fresh murta and arrayan juices. In the last cycle, for fresh murta and arrayan juices, the total soluble solids (TSS) showed values close to 48 and 54 Brix, and TPCC exhibited values of approximately 20 and 66 mg gallic acid equivalents/100 grams dry matter (d.m.) for total polyphenol content, 13 and 25 mg cyanidin-3-glucoside equivalents/100 grams d.m. for total anthocyanin content, and 9 and 17 mg quercetin equivalents/100 grams d.m. for total flavonoid content, respectively. Moreover, the TPCC retention indicated values over 78% for murta juice, and 82% for arrayan juice. Similarly, the AA presented an increase over 2.1 times in relation to the correspondent initial AA value. Thus, the process parameters values were between 69% and 85% for efficiency, 70% and 88% for percentage of concentrate, and 0.72% and 0.88 (kg solutes/kg initial solutes) for solute yield. Therefore, this work provides insight about CBFC on valuable properties in fresh Patagonian berries juices, for future applications in health and industrial scale.

Impacts of pulsed electric field and heat treatment on quality and sensory properties and microbial inactivation of pomegranate juice

2017 ◽  
Vol 23 (8) ◽  
pp. 668-680 ◽  
Author(s):  
Gulsun A Evrendilek
Keyword(s):  
Ascorbic Acid ◽  
Acid Concentration ◽  
Titratable Acidity ◽  
Sensory Properties ◽  
Pomegranate Juice ◽  
Total Phenolic ◽  
Anthocyanin Content ◽  
Linear Regression Models ◽  
Ascorbic Acid Concentration ◽  
Total Antioxidant

Synergistic effects of pulsed electric field+mild heat on quality properties of pomegranate juice were modeled using the best-fit multiple (non-) linear regression models with inactivation kinetics parameters of Escherichia coli O157:H7 and Staphylococcus aureus. No significant difference was detected between the control and the treated samples in terms of pH; °Brix; total antioxidant capacity; total monomeric anthocyanin content; total ascorbic acid concentration; and the sensory properties of flavor, taste, aftertaste, and overall acceptance ( p > 0.05). An exposure of 65.3 J and 40 ℃ caused an increase on conductivity; titratable acidity; L*, a*, and b* values; and a decrease of browning index, total phenolic content, total antioxidant capacity, total monomeric anthocyanin content, total ascorbic acid concentration, and in the sensory properties of color and sourness in pomegranate juice. The goodness-of-fit for the best-fit multiple (non-) linear regression models in descending order belonged to E. coli O157:H7 (92.98%), S. aureus (84.06%), color a* (83.9%), titratable acidity (81.3%), color L* (78.5%), color b* (78.3%), conductivity (74.8%), total phenolic content (74.1%), and total ascorbic acid concentration (64.74%), respectively. De and ze values for E. coli O157:H7 and S. aureus ranged from 105.64 to 1093.25 and from 79.18 to 1057.73 µs with 27.39 and 30.80 J, consequently.

scholarly journals Effects of an Auxin and a brassinosteroid on physical, chemical and biochemical attributes of ‘Galaxy’ apples

2019 ◽  
Vol 49 (4) ◽  
Author(s):  
Ângela Preza Ramos ◽  
Aquidauana Miqueloto Zanardi ◽  
Cassandro Vidal Talamini do Amarante ◽  
Cristiano André Steffens ◽  
Adaucto Bellarmino Pereira-Netto
Keyword(s):  
Plant Growth ◽  
Antioxidant Activities ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Naphthalene Acetic Acid ◽  
Anthocyanin Content ◽  
Water Control ◽  
Physical Chemical ◽  
Total Antioxidant ◽  
Fruit Shelf Life

ABSTRACT: The aim of this study was to study the effect of the auxin naphthalene acetic acid (NAA) and the brassinosteroid 28-homocastasterone (28-HCS) applied every 15 days (harvest 2015/16) or every 21 days (harvest 2016/17) after full bloom, on the physical, chemical and biochemical attributes of the ‘Galaxy’ apples. The study was performed at a commercial orchard at Vacaria county, Rio Grande do Sul State, Brazil. The following treatments were applied: water (control), NAA (0.1%), 28-HCS (10‒6 M) and NAA (0.1%) + 28-HCS (10‒6 M). For this purpose, 300 μL of the plant growth regulator solutions were applied to the fruit peduncles. Fruits treated with NAA every 21 days presented higher starch-iodine index and lower total soluble solids (TSS), titratable acidity (TA), lightness index (L) and hue angle (h°) than 28-HCS-treated fruits. Fruits treated every 15 days with NAA presented reduced skin rupture force (SRF), total antioxidant activities (TAA) of the skin and flesh, and hydrogen peroxide content compared to the control fruits. In addition, NAA application every 15 and 21 days resulted in increased anthocyanin content in the skin. Application of NAA + 28-HCS reduced superoxide dismutase activity. 28-HCS applications increased TSS, color attributes (C and h°) of the skin, total antioxidant activity of the skin and flesh and peroxidase activity compared to control fruits. These results are expected to help to understand how plant growth regulators affect apple quality. In addition, results described here are also expected to help on the development of strategies to reduce post harvest losses and to increase fruit shelf life.

scholarly journals Effect of growing location on anthocyanin content and total antioxidant capacity of haskap (Lonicera caerulea L.) berry: A preliminary investigation

2021 ◽  
Vol 48 (No. 4) ◽  
pp. 183-189
Author(s):  
Aruma B.H.K. De Silva ◽  
H.P. Vasantha Rupasinghe
Keyword(s):  
Nova Scotia ◽  
Antioxidant Capacity ◽  
Total Antioxidant Capacity ◽  
Ph Value ◽  
Preliminary Investigation ◽  
Soluble Solids ◽  
Total Phenolic ◽  
Anthocyanin Content ◽  
Total Anthocyanin ◽  
Total Antioxidant

The haskap has been successfully cultivated in many geographical zones in Canada. We investigated whether the latitude has any impact on the anthocyanin accumulation and total antioxidant capacity in the haskap berry. The measured quality attributes were compared with that of the blueberry. Haskap ‘Aurora’ berries were collected from Yukon, British Columbia, Saskatchewan, and Nova Scotia in Canada, and blueberries were collected from Nova Scotia. Cyanidin-3-O-glucoside (C3G), the most abundant anthocyanin of haskap berry, the total anthocyanins, the total polyphenols, the soluble solids (°Brix), the pH value, the total antioxidant capacity, and the moisture content were determined. The results revealed that the total anthocyanin, total phenolic content, and antioxidant capacity of the haskap range between 88 to 273 mg C3GE/100 g fresh weight (FW), 256 to 442 mg GAE/100 g of FW, and 27 to 52 µmol TE/g FW, respectively. The liquid chromatography-mass spectrometry (UPLC/MS) analysis revealed that the C3G contained in the haskap berry is highly dependent on the harvest stage. Among the samples, the haskap berry harvested on July 19, 2019, from the Yukon had the highest C3G content. Interestingly, the total anthocyanin content of the haskap berry is comparable to that of the lowbush blueberry, but higher than the highbush blueberry. A systematic multi-year experiment employing many cultivars and growing locations is recommended to better understand the latitude effect.

Effects of pulsed electric fields on sour cherry juice properties and formations of furfural and hydroxymethylfurfural

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Gulsun Akdemir Evrendilek ◽  
Erdal Agcam ◽  
Asiye Akyildiz
Keyword(s):  
Electric Fields ◽  
Pulsed Electric Fields ◽  
Sour Cherry ◽  
Titratable Acidity ◽  
Color Difference ◽  
Soluble Solids ◽  
Anthocyanin Content ◽  
Tartaric Acids ◽  
Cherry Juice ◽  
Total Antioxidant

AbstractImpacts of pulsed electric fields (PEF) on physicochemical properties, bioactive compounds, and furfural and hydroxymethylfurfural (HMF) formations were quantified for sour cherry juice (SCJ). pH, titratable acidity (TA), total soluble solids (TSS), a*, b*, chroma, and total monomeric anthocyanin content (TMAC) were not significantly affected by 0–0.0341 J/L. The initial total antioxidant capacity (TAC) significantly rose with all the PEF treatments but initial citric, malic, fumaric, oxalic, succinic (−)-epicatechin, ferrulic, gallic, luteolin, p-coumaric, and o-coumaric acids, Cy-3-sop, and Cy-3-glu did not significantly degrade with no formations of furfural and HMF. The best-fit regression models explained 60.1, 39.7, and 36.3% of variation in TAC, TMAC, and TSS, respectively. Frequency exerted a greater impact than did electric field strength (EFS) on TA, pH, TSS, total color difference (TCD), hue, chroma, TMAC, TAC, sinapic, oxalic, quinic and tartaric acids, Cy-3-glu-rut, and furfural formation. 350.9 µs, 6.78 kV/cm, and 98 Hz were pointed as optimal settings.

scholarly journals EVALUATION OF SELECTED FRUIT QUALITY ATTRIBUTES FOR SEVEN STRAWBERRY CULTIVARS

HortScience ◽  
1991 ◽  
Vol 26 (5) ◽  
pp. 495g-496
Author(s):  
N.O. Maness ◽  
D.R. Chrz ◽  
K. Striegler ◽  
I Wahem ◽  
T.G. McCollum
Keyword(s):  
Titratable Acidity ◽  
Soluble Solids ◽  
Measured Parameter ◽  
Fruit Characteristics ◽  
A Value ◽  
Berry Weight ◽  
Berry Quality ◽  
Relationship Of ◽  
The Relationship ◽  
Strawberry Cultivars

Fresh strawberries are highly perishable commodities, and berry quality at harvest delimits their potential shelf life. We are conducting harvest quality evaluations for seven commercially available cultivars. Seven different fruit characteristics were chosen to assess cultivar performance during the early, middle and late phases of the picking season: marketable berry yield, berry weight, berry firmness, berry color (“a” value), percept soluble solids, titratable acidity (percent citric acid) and the ratio between soluble solids and titratable acidity. Marketable berry yield, berry weight and berry firmness varied substantially between cultivars. A few differences were observed between cultivars for berry color. Berry flavor, as evidenced by the ratio between soluble solids and acidity, was also apparently different between cultivars with three of the seven cultivars consistently exhibiting higher ratios. The relationship of each measured parameter to quality will be discussed.

scholarly journals Application of Ultrasound Combined with Acetic Acid and Peracetic Acid: Microbiological and Physicochemical Quality of Strawberries

Molecules ◽  
2020 ◽  
Vol 26 (1) ◽  
pp. 16
Author(s):  
Priscila Donatti Leão Alvarenga ◽  
Christiane Mileib Vasconcelos ◽  
Jackline Freitas Brilhante de São José
Keyword(s):  
Acetic Acid ◽  
Peracetic Acid ◽  
Storage Time ◽  
Titratable Acidity ◽  
Physicochemical Characteristics ◽  
Soluble Solids ◽  
Anthocyanin Content ◽  
Fresh Matter ◽  
Total Soluble Solids ◽  
Total Titratable Acidity

This work evaluated the application of organic acids (acetic and peracetic acid) and ultrasound as alternative sanitization methods for improving the microbiological and physicochemical qualities of strawberries. A reduction of up to 2.48 log CFU/g aerobic mesophiles and between 0.89 and 1.45 log CFU/g coliforms at 35 °C was found. For molds and yeasts, significant differences occurred with different treatments and storage time (p < 0.05). Ultrasound treatments in combination with peracetic acid and acetic acid allowed a decimal reduction in molds and yeasts (p < 0.05). All evaluated treatments promoted a significant reduction in the Escherichia coli count (p < 0.05). Scanning electron microscopy revealed fragmented E. coli cells due to treatment with acetic acid and ultrasound. Storage time significantly affected pH, total titratable acidity, total soluble solids and the ratio of the total titratable acidity to the total soluble solids (p < 0.05). Anthocyanin content did not change with treatment or time and generally averaged 13.47 mg anthocyanin/100 g of strawberries on fresh matter. Mass loss was not significantly affected by the applied treatments (p > 0.05). The combination of ultrasound and peracetic acid may be an alternative to chlorine-based compounds to ensure microbiological safety without causing significant changes in the physicochemical characteristics of strawberries.

scholarly journals Quality and functional properties of ‘Tupy’ blackberry stored in modified atmosphere conditions

2019 ◽  
Vol 41 (1) ◽  
Author(s):  
Cristina Soethe ◽  
Cristiano André Steffens ◽  
Mariuccia Schlichting de Martin ◽  
Cassandro Vidal Talamini do Amarante ◽  
Angélica Schmitz Heinzen ◽  
...  
Keyword(s):  
Storage Temperature ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Atmospheric Composition ◽  
Total Phenolic ◽  
Modified Atmosphere ◽  
Plastic Films ◽  
High Co2 ◽  
Dpph Method ◽  
Total Antioxidant

Abstract The aim of this work was to evaluate the effect of storage temperature, in passive modified atmosphere (MA) and atmospheric composition in active MA on quality maintenance, total phenolic compounds (TPC) and total antioxidant activity (TAA; DPPH and ABTS methods) of ‘Tupy’ blackberry. Two experiments were carried out. In experiment 1, the fruit were stored for eight days at 0, 5 and 10 °C in passive MA. In experiment 2, the initial atmospheres of 21.0 kPa O2 + 0.04 kPa CO2 (passive MA); 9.2 kPa O2 + 9.2 kPa CO2 (active MA with high CO2); 1.4 kPa O2 + 0.04 kPa CO2 (active MA with low O2); and 1.4 kPa O2 + 9.6 kPa CO2 (active MA with low O2 + high CO2) were evaluated for eight days at 0 °C. In both experiments, the fruit were packed in Xtend® plastic films. After eight days of storage in passive MA, temperatures of 0 and 5 ºC provided fruit with higher force to compression and titratable acidity (TA) and lower soluble solids/titratable acidity ratio (SS/TA), but with lower values of TPC and TAA (DPPH method) when compared to the temperature of 10 °C. The fruits stored at 0 °C presented lower values of weight loss and incidence of decay. Blackberries stored for eight days at 0 °C, in active MA with low O2, associated or not with high CO2, presented lower respiration rate and higher values of TPC and TAA (DPPH method), but did not differ in the values of incidence of decay, force to compression, SS, TA, SS/TA ratio and color attributes when compared to active MA with high CO2 and passive MA.

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