scholarly journals Antioxidant complex of bioflavonoids and ascorbic acid in apples (Malus pumila Mill.) – a review

2000 ◽  
Vol 18 (No. 4) ◽  
pp. 153-158
Author(s):  
J. Lachman ◽  
M. Orsák ◽  
V. Pivec

In this review article it is given an information about the composition of flavonoid complex of apples (Malus pumila Mill.). It is discussed the influence of extrinsic and intrinsic factors on polyphenolic antioxidant content (varietal differences, influence of locality, year, maturity, pre-harvest treatment, storage, technological ways of processing) and the relation between the polyphenol content and the resistance of apple varieties. During storage there is an apparent decrease of both ascorbic acid and polyphenols. Contents of anthocyanins and chalcones are in positive correlation with resistance of apple trees to low and variable temperatures. During maturation of apple fruits synthesis and accumulation of polyphenols, esp. anthocyanins, and ascorbic acid was determined. Meanwhile polyphenols are substrates of polyphenol oxidases in the process of enzymic browning, ascorbic acid is a natural inhibitor of this browning deterioration. Process of enzymic browning of apple fruits and juices could be inhibited with ascorbic and citric acid addition to apple products. Polyphenol content could be influenced by pre-harvest and technological procedures.

1972 ◽  
Vol 52 (5) ◽  
pp. 743-750 ◽  
Author(s):  
W. W. CHAN ◽  
CALVIN CHONG ◽  
C. D. TAPER

Fruits of McIntosh apple, Malus pumila Mill., were analyzed at 10-day intervals for sorbitol, sucrose, glucose, fructose, raffinose, and starch throughout development on the tree, both day (10 a.m.) and night (10 p.m.), and while in storage. The highest concentrations (mg/g fresh weight) of sorbitol occurred during early fruit growth with values of 4.36 and 5.38 mg/g on June 6 and 16, respectively, followed by a decreasing trend in concentration through until July 6 (1.85 mg/g) and persistently low levels, varying between 1.23 and 2.85 mg/g throughout the remainder of the season. The fructose content was relatively low during early fruit growth with values of 7.24 and 6.71 mg/g on June 6 and 16, respectively, after which it rose substantially and increased progressively to 49.60 mg/g at the end of the season. The concentrations of glucose (0.72–4.02 mg/g), sucrose (0.27–1.87 mg/g), and raffinose (0–0.77 mg/g) were relatively low throughout the growing season as were generally those of raffinose during storage. Starch increased to maximum concentrations (5.83–8.80 mg/g) during the summer months, decreased towards the end of the season, and disappeared early in storage. Day/night analyses of fruits throughout the season yielded distinct patterns in the day/night ratio of sorbitol that were concurrent with the periods of major shifts in sorbitol and fructose levels during fruit development. During the storage period, the general trend in the concentrations of sorbitol and sucrose showed increases of 1.63–4.44 and 0.67–7.22 mg/g, respectively. The concentrations of fructose (19.59–82.50 mg/g) and glucose (6.36–72.38 mg/g) were relatively high but markedly variable throughout the storage period. Fructose was present generally in greater quantities than glucose.


2017 ◽  
Vol 68 (3) ◽  
pp. 474-477
Author(s):  
Lacramioara Oprica ◽  
Doina Atofanei ◽  
Vladimir Poroch

The amounts of anthocyanins, flavonoids, total polyphenol and ascorbic acid in seven apple cultivars from Romania were investigated. The amounts of polyphenol and flavonoids in pulp and skin of apple cultivars ranged between 17.18�7.52 mg GAE/g DW and 20.10�11.06 mg CE/g DW as well as 3.64�1.18 mg GAE/g DW and 10.31�5.57 mg CE/g DW, respectively. The highest and smallest values of ascorbic acid both in the skin and the pulp were observed in the cultivars Mutsu and Starkrimson. The anthocyanin content is positively correlated with the colour intensity of the apple epicarp, being about three-fold higher in Prima than Golden Delicious cultivar. The better antioxidant activity provided by the content of polyphenol, ascorbic acid and flavonoids was in apple fruits of Mutsu cultivar and for this reason it should be regarded as a valuable source of antioxidants.


Life ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 406
Author(s):  
Nicola Zerbinati ◽  
Sabrina Sommatis ◽  
Cristina Maccario ◽  
Serena Di Francesco ◽  
Maria Chiara Capillo ◽  
...  

Skin ageing has many manifestations such as wrinkles, dryness, hyperpigmentation, and uneven skin tone. Extrinsic and intrinsic factors, especially solar ultraviolet light (UVB), contribute to skin ageing; its main features are brown spots, alterations in melanin pigmentation, and a decrease in collagen and hyaluronic acid linked to oxidative stress. Several studies showed that topical products containing ingredients with antioxidant activity can reduce oxidative damage; to provide a maximum anti-ageing effect to the skin, topical products can combine various ingredients. C-SHOT SERUM contains a combination of two molecules with a proven anti-ageing activity: a high percentage (30%) of a more stable vitamin C derivative, 3-O-ethyl-l-ascorbic acid, and lactic acid (1%). The product showed a high biocompatibility, assessed through an MTT assay on keratinocytes and on Reconstructed Human Epidermis (RHE, SkinEthic); the anti-ageing activity was demonstrated on human dermal fibroblasts and keratinocytes by a statistically significant increase in collagen production and a reduction of a UVB-induced DNA damage marker (γ-H2AX histone), indicating DNA protection. Moreover, a depigmenting activity, shown by a highly significant decrease in melanin content on treated Reconstructed Human Pigmented Epidermis (RHPE), was assessed. According to the data of our study, the tested product contrasts the effect of skin ageing and irregular pigmentation due to the physiological decline of the skin.


2018 ◽  
Vol 12 (1) ◽  
Author(s):  
Zhenhua Yin ◽  
Yong Zhang ◽  
Juanjuan Zhang ◽  
Jinmei Wang ◽  
Wenyi Kang

2020 ◽  
pp. 581-589
Author(s):  
Rainer W. Bussmann ◽  
Ketevan Batsatsashvili ◽  
Zaal Kikvidze ◽  
Narel Y. Paniagua-Zambrana ◽  
Manana Khutsishvili ◽  
...  

2010 ◽  
pp. n/a-n/a ◽  
Author(s):  
Bai-Ye Sun ◽  
Shi-Hong Kan ◽  
Yan-Zong Zhang ◽  
Jun Wu ◽  
Shi-Huai Deng ◽  
...  

1975 ◽  
Vol 55 (3) ◽  
pp. 743-747 ◽  
Author(s):  
S. W. PORRITT ◽  
P. D. LIDSTER ◽  
M. MEHERIUK

The incidence of internal breakdown in Spartan apples (Malus pumila Mill.) was significantly reduced by a 3-day holding period at 20 C or 2 wk in hypobaric storage at 0 C prior to 0 C storage. Dipping fruit in solutions of calcium chloride or gibberellic acid prior to storage also reduced the disorder. High relative humidity in the storage atmosphere was associated with soft fruit, low soluble solids, low ethylene production and increased incidence of breakdown.


2021 ◽  
Vol 64 ◽  
pp. 54-60
Author(s):  
D. R.  Useynov ◽  
E. F. Chelebiev ◽  
О. A. Denisova

The article presents data on the study of the effect of foliar water-soluble mineral fertilizer NOVATEK Solub K-Max 10-5-30 on the biochemical composition and commercial quality of apple fruits. A rise in vitamin C from the introduction of NOVATEK at a rate of 2.5 kg/ha indicates the effectiveness of this drug for optimizing the content of ascorbic acid in fruits. An increase in the content of monosaccharides and a decrease in disaccharides were found for all the studied rates of consumption of agrochemicals. The use of mineral fertilizer “Novatek Solub K-Max” contributed to increase the dry weight of fruits. The application of this mineral fertilizer is recommended for inclusion in the industry regulations for Apple cultivation as one of the elements of the technology. 


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