PHENOLIC COMPOUNDS, ANTIOXIDANT ACTIVITY AND OTHER QUALITY RELATED CRITERIA OF 'SUMMERRED' APPLES AS INFLUENCED BY POSTHARVEST STORAGE CONDITIONS

Apples are seasonal fruits, and it is important to prepare them adequately for storage and ensure proper storage conditions. In this study, we used ten different apple cultivars: ‘Alva’, ‘Auksis’, ‘Connell Red’, ‘Cortland’, ‘Ligol’, ‘Lodel’, ‘Noris’, ‘Rubin’, ‘Sampion’, and ‘Spartan’. We studied the qualitative and quantitative composition of phenolic compounds in the apple and apple extracts antioxidants activity before placing them in the controlled atmosphere chambers and again at the end of the experiment, eight months later. Different concentrations of O2, CO2, and N2, constant temperature, relative humidity, and removal of endogenous ethylene were continually maintained. HPLC analysis showed that the highest amount of 2265.7 ± 152.5 µg/g of chlorogenic acid was found in apple samples of the ‘Auksis’ cultivar stored under variant IV conditions. Different concentrations of gas in the controlled atmosphere chambers caused changes in antioxidant activity in whole apple and apple peel extracts. In our study, we found that the antioxidant activity of apple extracts varied between samples of different apple cultivars and depended on the composition of the controlled atmosphere. Determining the optimal storage conditions is beneficial to providing the consumers with apples that have a known and minimally altered chemical composition of phenolic compounds and the strongest antioxidant activity, which determine the use of apples in the healthy food chain.

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Effect of Storage Conditions on Phenolic Profiles and Antioxidant Activity of Litchi Pericarp

Molecules ◽

10.3390/molecules23092276 ◽

2018 ◽

Vol 23 (9) ◽

pp. 2276 ◽

Cited By ~ 6

Author(s):

Mei Deng ◽

Yuanyuan Deng ◽

Lihong Dong ◽

Yongxuan Ma ◽

Lei Liu ◽

...

Keyword(s):

Antioxidant Activity ◽

Phenolic Compounds ◽

Room Temperature ◽

Storage Conditions ◽

Oxygen Radical ◽

Oxygen Radical Absorbance Capacity ◽

Total Phenolic ◽

Slowing Down ◽

Phenolic Profiles ◽

Litchi Pericarp

Changes of phenolic profiles and antioxidant activity of litchi pericarp during storage at 4 °C for seven days and at room temperature (RT) for 72 h were evaluated in this study. The contents of total phenolic and procyanidin decreased by 20.2% and 24.2% at 4 °C and by 37.8% and 47.8% at RT, respectively. Interestingly, the corresponding reductions of anthocyanins were 41.3% and 73%, respectively. Four phenolic compounds, including epicatechin, procyanidin A2, procyanidin B2, and quercetin-3-O-rutinoside-7-O-α-l-rhamnosidase were detected in litchi pericarp. Their contents after storage at 4 °C and at RT were decreased by 22.1–49.7% and 27.6–48.7%, respectively. The oxygen radical absorbance capacity (ORAC) and cellular antioxidant activity (CAA) of litchi pericarp decreased by 17.6% and 58.7% at 4 °C, and by 23.4% and 66.0% at RT, respectively. The results indicated that storage at 4 °C preserved more phenolics and retained higher antioxidant activity in litchi pericarp compared to storage at RT, suggesting that storage at 4 °C should be considered as a more effective method for slowing down the degradation of litchi pericarp phenolics.

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Phenolic Compounds and Antioxidant Activity of Scorzonera pygmaea Sibth.& Sm. Subaerial Parts

10.1055/s-0037-1608095 ◽

2017 ◽

Author(s):

A Sarı ◽

H Şahin ◽

N Özsoy

Keyword(s):

Antioxidant Activity ◽

Phenolic Compounds

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ORGANIC ACIDS, SUGARS, PHENOLIC COMPOUNDS AND ANTIOXIDANT ACTIVITY OF Malus floribunda coccinella FRUIT, PEEL AND FLESH

Acta Scientiarum Polonorum Hortorum Cultus ◽

10.24326/asphc.2018.5.5 ◽

2018 ◽

Vol 17 (5) ◽

pp. 47-59

Author(s):

Hacer Coklar ◽

Mehmet Akbulut ◽

Iliasu Alhassan ◽

Şeyma Kirpitci ◽

Emine Korkmaz

Keyword(s):

Antioxidant Activity ◽

Phenolic Compounds ◽

Organic Acids ◽

Fruit Peel ◽

Malus Floribunda

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Determination of antioxidant activity of phenolic compounds of Thymus transcapicus by high performance Liquid Chromatography

International Journal of Advanced Life Sciences ◽

10.26627/ijals/2017/10.02.0012 ◽

2017 ◽

Vol 10 (02) ◽

pp. 231-328

Author(s):

Maryam Sardarodiyan ◽

◽

Mozhgan Nasiri Shahri ◽

Roya Amiri Qandashtani ◽

Keyword(s):

Antioxidant Activity ◽

High Performance Liquid Chromatography ◽

Liquid Chromatography ◽

Phenolic Compounds ◽

High Performance

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CARBOHYDRATE PRODUCT FOR THERAPEUTIC AND PROPHYLACTIC PURPOSES

"Medical & pharmaceutical journal "Pulse" ◽

10.26787/nydha-2686-6838-2020-22-11-89-94 ◽

2020 ◽

pp. 89-94

Author(s):

Khvorova L.S. ◽

Byzov V.A.

Keyword(s):

Antioxidant Activity ◽

Uric Acid ◽

Phenolic Compounds ◽

Mental Stress ◽

The Body ◽

Hot Water ◽

Preventive Effect ◽

Activity Inhibition ◽

Medicinal Properties ◽

Simple Carbohydrates

The article is devoted to the creation of a carbohydrate product with rosehip extract in the form of sweets (glucose Fudge) with a therapeutic and preventive effect aimed at restoring the body of people exposed to intense physical and mental stress and the effects of damaging environmental factors. As carbohydrates in the recipe, simple carbohydrates (glucose) and complex carbohydrates in the form of starch molasses containing (maltose, tri - Tetra - sugars, dextrins) are used. Glucose in the formulation is the main energy ingredient, sweetener and structure-forming component that gives the product a solid consistency due to crystallization. The medicinal effect of the product is provided by rosehip extract. Numerous published studies have established its vitamin, immunostimulating and antioxidant activity, inhibition of uric acid formation and obesity, which are associated with flavonoids, other phenolic compounds, and vitamins. The list of medicinal properties of rosehip extract shows the feasibility of using it in additional nutrition of people in order to prevent diseases. For the formulation of our sweets, the extraction of crushed rosehip fruits was carried out three times with hot water at a temperature of 65-700C, followed by concentration of the extract under vacuum to 25-30% SV. The resulting extract-concentrate was introduced into the formulation in a dosage of 5.5% SV per 100 g of SV glucose Fudge, which provided the necessary dosage for the product when used from 3 (for children) to 10 sweets a day (for adults) for the prevention of colds.

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