Physical and chemical properties, antioxidant capacity, and total phenolic content of xyloglucan component in tamarind ( Tamarindus indica ) seed extracted using subcritical water

2019 ◽  
Vol 43 (10) ◽  
Author(s):  
Nipat Limsangouan ◽  
Neeranuch Milasing ◽  
Masubon Thongngam ◽  
Pramote Khuwijitjaru ◽  
Weerachet Jittanit
Keyword(s):  
Antioxidant Capacity ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Subcritical Water ◽  
Chemical Properties ◽  
Total Phenolic ◽  
Physical And Chemical Properties ◽  
Tamarindus Indica ◽  
Physical And Chemical ◽  
And Chemical Properties

scholarly journals The Effect of Filtration on Physical and Chemical Properties of Osmo-Dehydrated Material

Molecules ◽  
2020 ◽  
Vol 25 (22) ◽  
pp. 5412
Author(s):  
Klaudia Masztalerz ◽  
Adam Figiel ◽  
Anna Michalska-Ciechanowska ◽  
Aneta Wojdyło ◽  
Paulina Nowicka ◽  
...  
Keyword(s):  
Antioxidant Capacity ◽  
Osmotic Dehydration ◽  
Cell Structure ◽  
Chemical Properties ◽  
Trolox Equivalent Antioxidant Capacity ◽  
Total Phenolic ◽  
Physical And Chemical Properties ◽  
Osmotic Solution ◽  
Physical And Chemical ◽  
And Chemical Properties

Osmotic dehydration (OD) performed in concentrated fruit juices used as osmotic solution (OS) comes with some limitations resulting from the material cell structure and is not entirely recognized at the moment. Filtration of the juice could provide some insight into the phenomena occurring throughout the OD. Therefore, the main aim of the study was to recognize the mechanism of selective penetration during OD and evaluate the effect of filtration on physical and chemical properties of osmo-dehydrated material. For this purpose, OD of pumpkin in non-filtrated and filtrated (filters 0.2, 0.45, 0.8, 1.2, 3, 5 and 8 μm) concentrated chokeberry juice was carried out in the study. Moreover, scanning electron microscope (SEM) images were provided. Total phenolic content (TPC) and antioxidant capacity measured by Ferric Reducing Antioxidant Potential (FRAP) and Trolox Equivalent Antioxidant Capacity (TEAC ABTS) of OS and the material were determined. It was found that even though filtration of osmotic solution had a moderate influence on the mass transfer, it greatly affected the chemical composition of dehydrated material. The best option, considering both chemical and physical properties of the dehydrated material, is the use of non-filtrated solution. However, when shorter time of OD is considered, much better results are obtained for filtrated solutions.

scholarly journals Physico-Chemical Properties of Purified Carboxylesterase from the Seeds of Tamarindus indica

2021 ◽  
pp. 42-58
Author(s):  
S. Kantharaju ◽  
M. Mylarappa
Keyword(s):  
Molecular Weight ◽  
Gel Filtration ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Tamarindus Indica ◽  
Physico Chemical ◽  
Sds Page ◽  
Physical And Chemical ◽  
Naphthyl Acetate ◽  
And Chemical Properties

The present work is focus on physical and chemical properties of purified Carboxylesterase using the Seeds of Tamarindus Indica.The esterases are extracted from the germinating tamarind seeds using 50 mM phosphate buffer, pH 7 and purified. The Km with α-naphthyl acetate, β-naphthyl acetate and α-naphthyl butyrate as the substrates is 28.6 μM, 22.2 μM and 26.7 μM respectively. The Vmax for the same substrates is 7.1 x 10-3 µmole/min, 7.41 x 10-3 µmole/min and 8.00 x 10-3 µmole/min respectively. The enzymes optimally active at pH 7.0 and are stable between pH 5.0 to 8.0. The optimum temperature of esterase activity is 40˚C. The molecular weight of 27.5 kD as determined by SDS-PAGE, both in the presence and absence of β-mercaptothanol and is in close agreement with the molecular weight determined by gel-filtration on Sephadex G-100 (26.9 kD).

Effect of air-drying temperature on physico-chemical properties, antioxidant capacity, colour and total phenolic content of red pepper (Capsicum annuum, L. var. Hungarian)

2009 ◽  
Vol 117 (4) ◽  
pp. 647-653 ◽  
Author(s):  
Antonio Vega-Gálvez ◽  
Karina Di Scala ◽  
Katia Rodríguez ◽  
Roberto Lemus-Mondaca ◽  
Margarita Miranda ◽  
...  
Keyword(s):  
Antioxidant Capacity ◽  
Capsicum Annuum ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Chemical Properties ◽  
Total Phenolic ◽  
Air Drying ◽  
Drying Temperature ◽  
Capsicum Annuum L ◽  
Physico Chemical

Statistical criteria of stellar population types

1966 ◽  
Vol 24 ◽  
pp. 101-110
Author(s):  
W. Iwanowska
Keyword(s):  
Stellar Population ◽  
Chemical Properties ◽  
Spectrophotometric Study ◽  
Physical And Chemical Properties ◽  
Population Type ◽  
The Galaxy ◽  
Distribution Parameters ◽  
Physical And Chemical ◽  
Statistical Criteria ◽  
And Chemical Properties

In connection with the spectrophotometric study of population-type characteristics of various kinds of stars, a statistical analysis of kinematical and distribution parameters of the same stars is performed at the Toruń Observatory. This has a twofold purpose: first, to provide a practical guide in selecting stars for observing programmes, second, to contribute to the understanding of relations existing between the physical and chemical properties of stars and their kinematics and distribution in the Galaxy.

Response of corn (Zea mays L.) to various organic-based fertilizers in marginal upland of Sta. Rita, Samar

2017 ◽  
pp. 31-43
Author(s):  
Berta Ratilla ◽  
Loreme Cagande ◽  
Othello Capuno
Keyword(s):  
Block Design ◽  
Management Strategies ◽  
Chemical Properties ◽  
Organic Fertilizers ◽  
Growth And Yield ◽  
Physical And Chemical Properties ◽  
Total N ◽  
Randomized Complete Block Design ◽  
Physical And Chemical ◽  
And Chemical Properties

Organic farming is one of the management strategies that improve productivity of marginal uplands. The study aimed to: (1) evaluate effects of various organic-based fertilizers on the growth and yield of corn; (2) determine the appropriate combination for optimum yield; and (3) assess changes on the soil physical and chemical properties. Experiment was laid out in Randomized Complete Block Design, with 3 replications and 7 treatments, namely; T0=(0-0-0); T1=1t ha-1 Evans + 45-30-30kg N, P2O5, K2O ha-1; T2=t ha-1 Wellgrow + 45-30-30kg N, P2O5, K2O ha-1; T3=15t ha-1 chicken dung; T4=10t ha-1 chicken dung + 45-30-30kg N, P2O5, K2O ha-1; T5=15t ha-1 Vermicast; and T6=10t ha-1 Vermicast + 45-30-30kg N, P2O5, K2O ha-1. Application of organic-based fertilizers with or without inorganic fertilizers promoted growth of corn than the control. But due to high infestation of corn silk beetle(Monolepta bifasciata Horns), its grain yield was greatly affected. In the second cropping, except for Evans, any of these fertilizers applied alone or combined with 45-30-30kg N, P2O5, K2O ha-1 appeared appropriate in increasing corn earyield. Soil physical and chemical properties changed with addition of organic fertilizers. While bulk density decreased irrespective of treatments, pH, total N, available P and exchangeable K generally increased more with chicken dung application.

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