Natural colorant enrichment of apple tissue with black carrot concentrate using vacuum impregnation

2017 ◽  
Vol 52 (6) ◽  
pp. 1508-1516 ◽  
Author(s):  
Fatih Mehmet Yılmaz ◽  
Seda Ersus Bilek
Keyword(s):  
Vacuum Impregnation ◽  
Natural Colorant ◽  
Black Carrot ◽  
Apple Tissue

scholarly journals Studies on the Effect of Mass Transfer in Vacuum Impregnation on the Bioactive Potential of Apples

Molecules ◽  
2019 ◽  
Vol 24 (19) ◽  
pp. 3533 ◽  
Author(s):  
Marta Pasławska ◽  
Bogdan Stępień ◽  
Agnieszka Nawirska-Olszańska ◽  
Kinga Sala
Keyword(s):  
Mass Transfer ◽  
Antioxidant Capacity ◽  
Vacuum Impregnation ◽  
Process Conditions ◽  
Mass Variation ◽  
Polyphenol Content ◽  
Solid Gain ◽  
Vacuum Level ◽  
Apple Tissue ◽  
Bioactive Potential

The purpose of the study was to evaluate the efficiency of mass transfer during vacuum impregnation (VI) of apple tissue by different process conditions. VI was carried out in two stages: Vacuum (4, 6, or 8 kPa maintained at time 10, 20, 30, 40, 60, and 80 s) and atmospheric (4 min under atmospheric pressure). As infiltration liquids, fresh squeezed apple-pear juice (J), 3% citric acid solution (C), and distilled water (DW) were used. Mass transfer was analyzed based on three factors: Mass variation (MV), dry mass variation (DMV), and solid gain (SG). The outflow of native components and inflow of infiltration liquid has been described by mathematical models. The polyphenol content and antioxidant capacity (ABTS+, FRAP) were evaluated as the bioactive potential factors confirming native component outflow and incorporation of liquid molecules into an apple tissue. It was found that during VI of an apple tissue, intensive mass transfer occurred: Native components of fruit tissue outflowed and external ingredients of impregnation liquid inflowed into the material with the intensity proportional to the vacuum level and process time. The most beneficial conditions of apple cube VI were noticed at a vacuum level of 4 kPa for a minimum of 40 s, which is when the highest polyphenol content and antioxidant capacity occurred.

Gas in Scattering Media Absorption Spectroscopy (GASMAS) Detected Persistent Vacuum in Apple Tissue After Vacuum Impregnation

2011 ◽  
Vol 7 (1) ◽  
pp. 28-34 ◽  
Author(s):  
Urszula Tylewicz ◽  
Patrik Lundin ◽  
Lorenzo Cocola ◽  
Katarzyna Dymek ◽  
Pietro Rocculi ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Vacuum Impregnation ◽  
Scattering Media ◽  
Apple Tissue

Incorporation of pectinmethylesterase in apple tissue either by soaking or by vacuum-impregnation

2006 ◽  
Vol 38 (5) ◽  
pp. 610-616 ◽  
Author(s):  
Anne Guillemin ◽  
Pascal Degraeve ◽  
Fabienne Guillon ◽  
Marc Lahaye ◽  
Rémi Saurel
Keyword(s):  
Vacuum Impregnation ◽  
Apple Tissue

Induction of Vesicle Formation by Exposing Apple Tissue to Vacuum Impregnation

2011 ◽  
Vol 6 (4) ◽  
pp. 1099-1104 ◽  
Author(s):  
Urszula Tylewicz ◽  
Santina Romani ◽  
Susanne Widell ◽  
Federico Gόmez Galindo
Keyword(s):  
Vacuum Impregnation ◽  
Vesicle Formation ◽  
Apple Tissue

scholarly journals Sustainable Dyeing of Cotton Fabric Using Black Carrot (Daucus carota L.) Plant Residue as a Source of Natural Colorant

2019 ◽  
Vol 28 (5) ◽  
pp. 3081-3087 ◽  
Author(s):  
Fatima Batool ◽  
Naeem Iqbal ◽  
Muhammad Azeem ◽  
Shahid Adeel ◽  
Muhammad Ali
Keyword(s):  
Cotton Fabric ◽  
Daucus Carota ◽  
Plant Residue ◽  
Natural Colorant ◽  
Black Carrot ◽  
Daucus Carota L

The microstructure of functionalized poLyacrylonitrile beads for bioseparations

1990 ◽  
Vol 48 (4) ◽  
pp. 1094-1095
Author(s):  
Eduardo A. Kamenetzky ◽  
David A. Ley
Keyword(s):  
Aqueous Solution ◽  
Affinity Chromatography ◽  
Pore Size Distribution ◽  
Pore Size ◽  
Surface Coverage ◽  
Vacuum Impregnation ◽  
Thin Sections ◽  
Selective Staining ◽  
Low Viscosity ◽  
Diamond Knife

The microstructure of polyacrylonitrile (PAN) beads for affinity chromatography bioseparations was studied by TEM of stained ultramicrotomed thin-sections. Microstructural aspects such as overall pore size distribution, the distribution of pores within the beads, and surface coverage of functionalized beads affect performance properties. Stereological methods are used to quantify the internal structure of these chromatographic supports. Details of the process for making the PAN beads are given elsewhere. TEM specimens were obtained by vacuum impregnation with a low-viscosity epoxy and sectioning with a diamond knife. The beads can be observed unstained. However, different surface functionalities can be made evident by selective staining. Amide surface coverage was studied by staining in vapor of a 0.5.% RuO4 aqueous solution for 1 h. RuO4 does not stain PAN but stains, amongst many others, polymers containing an amide moiety.

The Utilization of Red Dragon Fruit Peel Extract (Hylocereus costaricencis) As A Natural Colorant of Dried Noodle

2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Silaturahmi Silaturahmi ◽  
Zaidiyah Zaidiyah ◽  
Tengku Mia Rahmiati
Keyword(s):  
Product Diversification ◽  
Fruit Peel ◽  
Physical Quality ◽  
Natural Colorant ◽  
Randomized Design ◽  
Solid Loss ◽  
Dragon Fruit ◽  
Completely Randomized Design ◽  
Peel Extract

The use of colorants in the dried noodle manufactures is an effort of product diversification. Besides of being used as a natural coloring agent, this peel extract is also used to improve nutritional value of the expected product. The purpose of this study was to determine the effect of red dragon fruit peel extract on the physical quality of dried noodle.  The study was conducted by using Completely Randomized Design (CRD) method with one factor, namely concentration of red dragon fruit peel extract (N1 = 10 ml, N2 = 15 ml, N3 = 20 ml, N4 = 25 ml, N5 = 30 ml).  The observations of its physical quality consisted of water absorption, solid loss during cooking, and organoleptic tests (aroma and color).  The best quality of dried noodle was obtained by using 30 ml red dragon fruit peel extract (N5) with physical properties, namely DSA levels of 351.92%, solid loss during cooking 4.78%, aroma 3.79 (like) and color 3.89 (like).

The Effect of γ-Al2O3, TiO2 and ZrO2 Supports on Hydrodesulfurization Activity of Transition-Metal Sulfides

2008 ◽  
Vol 73 (8-9) ◽  
pp. 945-955 ◽  
Author(s):  
Luděk Kaluža ◽  
Miroslav Zdražil
Keyword(s):  
Transition Metal ◽  
Aqueous Solutions ◽  
Model Reaction ◽  
Metal Sulfides ◽  
Vacuum Impregnation ◽  
Transition Metal Sulfides ◽  
Highly Active ◽  
System A ◽  
Benzothiophene Hydrodesulfurization ◽  
Hydrodesulfurization Activity

The transition metals V, Cr, Mn, Fe, Co, Ni, Mo, Ru, Rh, Pd, W, Re, Os, Ir and Pt were deposited from aqueous solutions of their salts onto conventional γ-Al2O3 and unconventional TiO2 and ZrO2 supports by vacuum impregnation and characterized in their sulfided form by a model reaction of benzothiophene hydrodesulfurization. It was found that the TiO2 and ZrO2 supports influenced predominantly positively the resulting activity of relatively low-active metals (V, Cr, Mn, Fe, Co, Ni, Mo, Ru, W and Os), whereas the highly active metals (Rh, Pd, Ir, Pt and Re) were influenced slightly negatively or not at all by those supports compared with the γ-Al2O3-supported system. A significant effect of the supports on the hydrodesulfurization-activity ranking of the transition-metal sulfides studied was ascertained.

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