Optimization of extraction yield, flavonoids and lycopene from tomato pulp by high hydrostatic pressure-assisted extraction

2019 ◽  
Vol 278 ◽  
pp. 751-759 ◽  
Author(s):  
Vilbett Briones-Labarca ◽  
Claudia Giovagnoli-Vicuña ◽  
Raúl Cañas-Sarazúa
2017 ◽  
Vol 35 (No. 2) ◽  
pp. 180-187 ◽  
Author(s):  
Zhang Haining ◽  
Ma Yongkun

The purpose of this study was to evaluate the influence of high hydrostatic pressure assisted extraction (HHPE) on the anthocyanins from blueberry (Vaccinium ashei) pomace. From the Plackett-Burman Experimental Design (PBD) only the liquid-solid ratio, ethanol concentration, and extraction pressure were found to significantly affect the extraction yield of anthocyanin content. Hence, the outcome of Box-Behnken Design suggested that the optimal operating conditions of the HHPE for the yield of anthocyanin content were liquid-solid ratio 41 ml/g, ethanol concentration 63%, and extraction pressure 443 MPa. At these conditions, 107.9 mg/100 g anthocyanins was obtained, which was more than by the control extraction (67.63 mg/100 g). 10 anthocyanins were identified by HPLC-ESI-MS, malvidin-3-galactoside and malvidin-3-glucoside were the major anthocyanins.


Author(s):  
Haining Zhang ◽  
William Tchabo ◽  
Yongkun Ma

The objective of this study was to compare the efficiency of high hydrostatic pressure, ultrasonic, microwave, and heat extraction techniques on the blueberry pomace extract characteristics. The results showed that the highest extraction yield of anthocyanins and total phenols were obtained by high hydrostatic pressure assisted extraction. The difference of extraction yield of anthocyanins was significant (p<0.05) between high hydrostatic pressure assisted extraction and heating extraction. Furthermore, significant difference of total phenols extraction yield was obtained between high hydrostatic pressure assisted extraction and the other three extraction methods. The total color difference was significant for the four extraction methods. High hydrostatic pressure assisted extraction had the highest chroma and least browning index. Moreover, high hydrostatic pressure assisted extraction was found to have the highest hydroxyl radical scavenging activity. In summary, high hydrostatic pressure assisted extraction was revealed to be the suitable technique for phenolic extraction of blueberry pomace.


2019 ◽  
Vol 2019 ◽  
pp. 1-10 ◽  
Author(s):  
Claudia Giovagnoli-Vicuña ◽  
Sebastián Pizarro ◽  
Vilbett Briones-Labarca ◽  
Álvaro Delgadillo

Square wave voltammetry (SWV) analysis was used to assess the antioxidant interactions (synergism, addition, and antagonism) of fruit mixture extracts from grape (G), lemon (L), and blueberry (B) obtained by conventional extraction, ultrasound-assisted extraction, and high hydrostatic pressure extraction. The experimental results showed antagonistic antioxidant effects in all binary mixture extracts (L-G, L-B, and G-B). In DPPH and FRAP assays, the greatest antioxidant capacity was found in the G-B mixture (108.7 and 108.8 μmol TE g−1 dry extract, respectively) obtained by high hydrostatic pressure extraction; however, there were no significant differences when measured by ultrasound-assisted extraction. For TPC and TFC assays, the greatest values were for G-B (6.67 mg GA g−1 dry extract) and L-G (1.63 mg QE g−1 dry extract), respectively. SWV experiments showed antagonistic behavior in the mixtures. Among the different ratios of the fruit mixture extracts evaluated by SWV, 1 : 1 (w/w) combination showed the greatest antagonistic antioxidant effects. SWV suggests the components of the mixture with the highest antioxidant capacity oxidize after mixing. The results indicate that the presence of natural bioactive antioxidants in fruit mixtures does not guarantee that the interactions are synergistic.


2021 ◽  
Vol 288 ◽  
pp. 110128 ◽  
Author(s):  
Aline Soares Cascaes Teles ◽  
Davy William Hidalgo Chávez ◽  
Maria Alice Zarur Coelho ◽  
Amauri Rosenthal ◽  
Leda Maria Fortes Gottschalk ◽  
...  

2013 ◽  
Vol 94 (5) ◽  
pp. 850-856 ◽  
Author(s):  
Jae Hwan Kim ◽  
Yooheon Park ◽  
Kwang Won Yu ◽  
Jee-Young Imm ◽  
Hyung Joo Suh

2004 ◽  
Vol 52 (4) ◽  
pp. 479-487 ◽  
Author(s):  
Cs. Pribenszky ◽  
M. Molnár ◽  
S. Cseh ◽  
L. Solti

Cryoinjuries are almost inevitable during the freezing of embryos. The present study examines the possibility of using high hydrostatic pressure to reduce substantially the freezing point of the embryo-holding solution, in order to preserve embryos at subzero temperatures, thus avoiding all the disadvantages of freezing. The pressure of 210 MPa lowers the phase transition temperature of water to -21°C. According to the results of this study, embryos can survive in high hydrostatic pressure environment at room temperature; the time embryos spend under pressure without significant loss in their survival could be lengthened by gradual decompression. Pressurisation at 0°C significantly reduced the survival capacity of the embryos; gradual decompression had no beneficial effect on survival at that stage. Based on the findings, the use of the phenomena is not applicable in this form, since pressure and low temperature together proved to be lethal to the embryos in these experiments. The application of hydrostatic pressure in embryo cryopreservation requires more detailed research, although the experience gained in this study can be applied usefully in different circumstances.


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