"Influence of High Hydrostatic Pressure on Vitamin C, Beta-carotene Retention, Residual Polyphenol Oxidase and Peroxidase Activity, Antioxidant Capacity and Overall Acceptance of Mango (Mangifera indica) Juice"

2020 ◽  
Vol 13 (3) ◽  
pp. 1618-1622
Keyword(s):  
Hydrostatic Pressure ◽  
Vitamin C ◽  
Antioxidant Capacity ◽  
Polyphenol Oxidase ◽  
Peroxidase Activity ◽  
High Hydrostatic Pressure ◽  
Mangifera Indica ◽  
Beta Carotene

scholarly journals High Hydrostatic Pressure Processing Better Preserves the Nutrient and Bioactive Compound Composition of Human Donor Milk

2019 ◽  
Vol 149 (3) ◽  
pp. 497-504 ◽  
Author(s):  
Michael A Pitino ◽  
Sharon Unger ◽  
Alain Doyen ◽  
Yves Pouliot ◽  
Susanne Aufreiter ◽  
...  
Keyword(s):  
Hydrostatic Pressure ◽  
Vitamin C ◽  
Human Milk ◽  
High Hydrostatic Pressure ◽  
Very Low Birth Weight ◽  
Future Research ◽  
Low Birth Weight Infants ◽  
Human Donor ◽  
Donor Milk ◽  
Uv C

ABSTRACT Background When mother's milk is insufficient, pasteurized human donor milk (DM) is the recommended supplement for hospitalized very-low-birth-weight infants. The current method of pasteurization (Holder, 62.5°C, 30 min) negatively affects heat-sensitive nutrients and bioactive proteins. Objectives Objectives of this study were to compare changes in DM composition after thermal pasteurization (Holder and flash-heating) and nonthermal methods [UV-C irradiation and high hydrostatic pressure (HHP)]. We hypothesized that nonthermal techniques would result in fewer changes to composition. Methods Holder, flash-heating (brought to boil), UV-C irradiation (250 nm, 25 min), and HHP (500 MPa, 8 min) were studied. Pools of milk from 17 women known to contain bacteria at >5 × 107 colony forming units (CFU)/L were collected from the Rogers Hixon Ontario Human Milk Bank and underwent each pasteurization technique. Macronutrients, heat-sensitive micronutrients (vitamin C, folate), and bioactive components [bile-salt-stimulated lipase (BSSL), lysozyme, lactoferrin] were measured in raw and pools of pasteurized milk. Milk was cultured to determine how well each technique produced a culture negative result (detection limit <1 × 103 CFU/L). Results Folate was reduced by 24–27% after Holder, flash-heating, and UV-C (P < 0.05); no reduction was observed after HHP. All pasteurization methods reduced vitamin C (60–75%, P < 0.001). BSSL was abolished after Holder and flash-heating (P < 0.001), reduced after UV-C (48%, P < 0.001), but unaffected by HHP. Lysozyme activity was reduced after flash-heating (44%) and UV-C (74%, P < 0.004) but unaffected by Holder or HHP. Lactoferrin was reduced by all methods (P < 0.02) but most severely by flash-heating (74%) and least severely by HHP (25%). Holder and UV-C reduced lactoferrin by ∼48%. All pasteurization methods reduced the number of culture positive DM samples (P < 0.001). Conclusions HHP better preserves human milk composition than Holder pasteurization. Future research on the feasibility of HHP for pasteurizing human milk is warranted because its implementation may improve the nutritional status and health of DM-fed infants.

scholarly journals Enhanced Antioxidant Capacity of Puffed Turmeric (Curcuma longa L.) by High Hydrostatic Pressure Extraction (HHPE) of Bioactive Compounds

Foods ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 1690
Author(s):  
Yohan Choi ◽  
Wooki Kim ◽  
Joo-Sung Lee ◽  
So Jung Youn ◽  
Hyungjae Lee ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Hydrostatic Pressure ◽  
Antioxidant Capacity ◽  
High Hydrostatic Pressure ◽  
Ethanol Concentration ◽  
Curcuma Longa ◽  
Influential Factor ◽  
Chemical Changes ◽  
Antioxidant Power ◽  
Pressure Extraction

Turmeric (Curcuma longa L.) is known for its health benefits. Several previous studies revealed that curcumin, the main active compound in turmeric, has antioxidant capacity. It has been previously demonstrated that puffing, the physical processing using high heat and pressure, of turmeric increases the antioxidant and anti-inflammatory activities by increasing phenolic compounds in the extract. The current study sought to determine if high hydrostatic pressure extraction (HHPE), a non-thermal extraction at over 100 MPa, aids in the chemical changes and antioxidant functioning of turmeric. 2,2-diphenyl-1-picrylhydrazyl (DPPH), 2,2′-azino-bis (3-ethylbenzothiazoline-6-sulphonic acid) (ABTS), and ferric reducing antioxidant power (FRAP) analyses were conducted and assessed the content of total phenol compounds in the extract. The chemical changes of curcuminoids were also determined by high performance liquid chromatography (HPLC). Among the three variables of ethanol concentration, pressure level, and treatment time, ethanol concentration was the most influential factor for the HHPE of turmeric. HHPE at 400 MPa for 20 min with 70% EtOH was the optimal extraction condition for the highest antioxidant activity. Compositional analysis revealed that 2-methoxy-4-vinylphenol was produced by puffing. Vanillic acid and ferulic acid content increased with increasing HHPE time. Synergistic effect was not observed on antioxidant activity when the turmeric was sequentially processed using puffing and HHPE.

scholarly journals Changes in Physicochemical Properties and Volatiles of Kiwifruit Pulp Beverage Treated with High Hydrostatic Pressure

Foods ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 485 ◽  
Author(s):  
Yajing Chen ◽  
Xiaoping Feng ◽  
Hong Ren ◽  
Hongkai Yang ◽  
Ye Liu ◽  
...  
Keyword(s):  
Hydrostatic Pressure ◽  
Vitamin C ◽  
Physicochemical Properties ◽  
High Hydrostatic Pressure ◽  
Total Content ◽  
Soluble Solids ◽  
Refrigerated Storage ◽  
Beverage Samples ◽  
Heat Treated ◽  
Solids Content

Physicochemical properties and volatiles of kiwifruit pulp beverage treated with high hydrostatic pressure (HHP, 400–600 MPa/5–15 min) were investigated during 40-day refrigerated storage. Compared with heat treatment (HT), HHP ranged from 400–500 MPa was superior in retaining vitamin C, fresh-like color and volatiles, while soluble solids content and pH were not affected significantly. Furthermore, HHP improved brightness and inhibited browning of kiwifruit pulp beverage. Samples treated at 400 MPa for 15 min showed significantly higher vitamin C content and lower ∆E values over 40 days than heat-treated kiwifruit pulp beverage. The total content of alcohols, esters, acids, and ketones gradually increased, whereas the total aldehydes content decreased during storage. Interestingly, HHP treatment at 500 MPa for 15 min mostly retained important characteristic volatiles including hexanal and (E)-2-hexenal, indicating this treatment was more conducive to preserve the original fruity, fresh, grassy and green notes of kiwifruit pulp beverage than HT.

High Hydrostatic Pressure and Temperature Applied to Preserve the Antioxidant Compounds of Mango Pulp (Mangifera indica L.)

2016 ◽  
Vol 10 (4) ◽  
pp. 639-649 ◽  
Author(s):  
Mariana Camiro-Cabrera ◽  
Zamantha Escobedo-Avellaneda ◽  
Blanca Salinas-Roca ◽  
Olga Martín-Belloso ◽  
Jorge Welti-Chanes
Keyword(s):  
Hydrostatic Pressure ◽  
High Hydrostatic Pressure ◽  
Mangifera Indica ◽  
Antioxidant Compounds ◽  
Mango Pulp

Enzymatic and phytochemical stabilization of orange–strawberry–banana beverages by high hydrostatic pressure and mild heat

2016 ◽  
Vol 23 (2) ◽  
pp. 185-193 ◽  
Author(s):  
Zamantha Escobedo-Avellaneda ◽  
Izaskun Pérez-Simón ◽  
María Lavilla-Martín ◽  
Ana Baranda-González ◽  
Jorge Welti-Chanes
Keyword(s):  
Ascorbic Acid ◽  
Hydrostatic Pressure ◽  
Thermal Treatment ◽  
Polyphenol Oxidase ◽  
High Hydrostatic Pressure ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Ascorbic Acid Content ◽  
Pectin Methylesterase ◽  
Total Phenolic

A new approach to the use of high hydrostatic pressure is its combination with high and intermediate temperatures applied to obtain safe foods of high quality. The effect of high hydrostatic pressure on color, residual polyphenol oxidase and pectin methylesterase activity, and total phenolic and l-ascorbic acid contents of orange–strawberry–banana beverages was evaluated. Beverages were treated at 500 and 600 MPa at 19–64 ℃ during 2–10 min. The effect of the come up time was also evaluated and results were compared with the untreated and the thermally processed (80 ℃/7 min) products. Untreated beverages had total phenolic content of 210.2±12.3 mg gallic acid/100 g and 19.1 ± 0.6 mg l-ascorbic acid/100 g. For most high hydrostatic pressure treatment conditions, total phenolic content, l-ascorbic acid, and color did not change significantly. Maximum levels of inactivation of polyphenol oxidase and pectin methylesterase were 96.2 and 48% at 600 MPa/64 ℃/10 min, while the thermal treatment led to inactivation of 99.6 and 94.1% of both enzymes, but with negative color changes. l-ascorbic acid content was slightly decreased with the thermal treatment while total phenolic content was not affected. High hydrostatic pressure treatments of beverages at 600 MPa/64 ℃/10 min are recommended to retain maximal total phenolic content and l-ascorbic acid and achieve an acceptable polyphenol oxidase inactivation level.

scholarly journals Chemical and physical properties of aloe vera (Aloe barbadensis Miller) gel stored after high hydrostatic pressure processing

2013 ◽  
Vol 33 (1) ◽  
pp. 52-59 ◽  
Author(s):  
Karina Di Scala ◽  
Antonio Vega-Gálvez ◽  
Kong Ah-Hen ◽  
Yissleen Nuñez-Mancilla ◽  
Gipsy Tabilo-Munizaga ◽  
...  
Keyword(s):  
Hydrostatic Pressure ◽  
Antioxidant Capacity ◽  
High Hydrostatic Pressure ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Aloe Vera ◽  
Water Holding Capacity ◽  
Total Phenolic ◽  
Rehydration Ratio ◽  
Water Holding

The aim of this study was to evaluate the influence of high hydrostatic pressure (150, 250, 350, 450, and 550 MPa), applied for 5 minutes, on antioxidant capacity, total phenolic content, color, firmness, rehydration ratio, and water holding capacity of aloe vera gel stored for 60 days at 4 °C. The analyzed properties of the pressurized gel showed significant changes after the storage period. The highest value of total phenolic content was found at 550 MPa. However, a decrease in the antioxidant capacity was observed for all pressurized gel samples when compared to the control sample (p < 0.05). The smallest changes in product color were observed at pressure levels between 150 and 250 MP. The application of high hydrostatic pressure resulted in lower gel firmness, and the lowest value was found at 150 MPa (p < 0.05). On the other hand, the untreated sample showed a greater decrease in firmness, indicating that high pressure processing preserves this property. The application of high hydrostatic pressure exhibited modifications in the food matrix, which were evaluated in terms of rehydration ratio and water holding capacity.

scholarly journals Extraction of <i>β</i>-Carotene, Vitamin C and Antioxidant Compounds from <i>Physalis peruviana</i> (Cape Gooseberry) Assisted by High Hydrostatic Pressure

2013 ◽  
Vol 04 (08) ◽  
pp. 109-118 ◽  
Author(s):  
Vilbett Briones-Labarca ◽  
Claudia Giovagnoli-Vicuña ◽  
Paola Figueroa-Alvarez ◽  
Issis Quispe-Fuentes ◽  
Mario Pérez-Won
Keyword(s):  
Hydrostatic Pressure ◽  
Vitamin C ◽  
High Hydrostatic Pressure ◽  
Antioxidant Compounds ◽  
Physalis Peruviana ◽  
Cape Gooseberry

scholarly journals Quality Parameters of Juice Obtained from Hydroponically Grown Tomato Processed with High Hydrostatic Pressure or Heat Pasteurization

2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Maja Jeż ◽  
Wioletta Błaszczak ◽  
Kamila Penkacik ◽  
Ryszard Amarowicz
Keyword(s):  
Hydrostatic Pressure ◽  
Antioxidant Capacity ◽  
High Hydrostatic Pressure ◽  
Storage Period ◽  
Quality Parameters ◽  
Trolox Equivalent Antioxidant Capacity ◽  
Total Phenolic ◽  
Microbial Count ◽  
Antioxidant Power ◽  
Trolox Equivalent

The effect of processing such as high hydrostatic pressure (HHP) (400-600 MPa/15 min) or low pasteurization temperature (LPT) (74°C/2 min) or high pasteurization temperature (HPT) (90°C/1 min) on selected quality parameters of juice obtained from hydroponically cultivated beef tomatoes was investigated. The total polyphenols content (TPC), total phenolic index (TPI), Trolox equivalent antioxidant capacity (ABTS) and ferric reducing antioxidant power (FRAP) were analysed in the fresh and processed juices stored for 0, 7 and 14 days. What is more, colour parameters (L∗,a∗,b∗,∆E), the activity of polyphenol oxidase (PPO) and peroxidase (POD) and microbial stability were also analyzed following the juices storage. Among all the tested samples, the juice exposed to 600 MPa for 15 min showed superior quality. Samples treated with 600 MPa for 15 min and stored for 0, 7 and 14 days had high TPC, TPI, ABTS, FRAP and a∗ values. As demonstrated, these tested samples at the end of the storage period retained 90% and 95% of their polyphenol content and antioxidant capacity, respectively. As in the case of pasteurization, juice processing at 600 MPa for 15 min clearly reduced the activity of food-spoiling enzymes (PPO, POD) as well as the microbial count. The obtained results showed that TPC was significantly and positively correlated with TPI, ABTS and FRAP parameters.

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