A Study on Natural Dyes Extracted from Eichhornia crassipes and Thespesia populnea Flowers on the Functional and Physical Properties

2021 ◽  
pp. 1-10
Author(s):  
R. Priyanka ◽  
Rupa G
Keyword(s):  
Physical Properties ◽  
Eichhornia Crassipes ◽  
Natural Dyes ◽  
Thespesia Populnea

scholarly journals Study of Natural Dyes and Pineapple Leaf Fibres Growing Locations within Plant Stems on Dyeing Intensity.

2018 ◽  
Vol 68 ◽  
pp. 01030
Author(s):  
Amin Rejo ◽  
Rizky Tirta Adhiguna ◽  
Debora Geovanni Rajagukguk
Keyword(s):  
Physical Properties ◽  
Leaf Growth ◽  
Natural Dyes ◽  
Raw Material ◽  
Color Intensity ◽  
Caesalpinia Sappan ◽  
Require Quality ◽  
Plant Stem ◽  
Pineapple Leaves

The physical properties of fibres produced from pineapple leaves can vary due to the differences in growing locations within a stem and are influenced by leaf growth age. Pineapple leaf fibres require quality increase, particularly in dyeing. The utilizing of natural dyes ingredients from suji (Dracaena angustifolia) leaves extract, turmeric (Curcuma domestica val) and sappan (Caesalpinia sappan [L.]) wood have friendly impact on the environment. Various types of natural dyes and leaf fibres growing location within the stems of pineapple plants and the color intensity are carefully examined in this study. The diversity of natural dyes used in dyeing influenced the fibres color intensity of pineapple leaves. Pinneaple leaf fibers growing loccation within pineapple stems impacted fibre color lightness intensity, the axis a* and b* colors. The utilization of pineapple leaf fibers from the base of plant stem is more suitable to be used as textile raw material due to its higher lightness level.

scholarly journals FORMULASI SEDIAAN PERONA PIPI KOMBINASI EKSTRAK ETANOL UBI JALAR UNGU (Ipomoea batatas L.) DAN BUNGA KANA MERAH (Canna coccinea Mill.) DALAM BENTUK STICK

PHARMACON ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 487
Author(s):  
Grace Dien Manik ◽  
Hosea J. Edy ◽  
Elly J. Suoth
Keyword(s):  
Physical Properties ◽  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Ph Value ◽  
Ethanol Extract ◽  
Natural Antioxidants ◽  
Experimental Methods ◽  
Natural Dyes ◽  
Purple Sweet Potato ◽  
Homogeneous Composition

ABSTRACT Purple Sweet Potato (Ipomoea batatas L.) and Red Cana Flower (Canna coccinea Mill.) contain natural dyes (anthocyanins) which are used as an alternative natural dyes as well as natural antioxidants. This study aims to make and discover the physical evaluation of blusher preparations using natural dyes in a combination of Purple Sweet Potato extract and Red Cana Flower with a concentration of 15%: 15%, 15%: 20 %, 20%: 20%. This research used laboratory experimental methods. The results of the physical properties test showed that the resulting preparations gave a light purple to purplish pink color, had a distinctive odor of pafrum oleum rose, had a soft texture, all preparations had a homogeneous composition, the ph value of the preparations ranged from 6.00 – 6.45, the best polish at concentrations dye 20%: 20%, for 14 days of observation the color on all preparations did not change with light, and the most preferred preparations by researcher are those with dye concentrations of 20%: 20%. It shows that it can be concluded that a combination of ethanol extract of Purple Sweet Potato and Red Cana Flower. Can be used as a natural dye in blush preparations. Keywords:  Ipomoea batatas L., Canna coccinea Mill., Blusher. ABSTRAK  Ubi Jalar Ungu (Ipomoea batatas L.) dan Bunga Kana Merah (Canna coccinea Mill.) mengadung pewarna alami (antosianin) yang digunakan sebagai zat pewarna alami alternatif mapun sebagai antioksidan alami. Penelitian ini bertujuan untuk membuat serta mengetahui evaluasi fisik sediaan perona pipi dengan memanfaatkan pewarna alami pada kombinasi ekstrak Ubi Jalar Ungu dan Bunga Kana Merah dengan konsentrasi 15%:15%, 15%:20% dan 20%:20%. Penelitian ini menggunakan metode eksperimental laboratorium. Hasil pengujian sifat fisik menunjukan bahwa sediaan yang dihasilkan memberikan warna ungu muda hingga merah muda keunguan, bau khas parfum oleum rose, teksturnya lembut, semua sediaan memiliki susunan yang homogen, nilai pH sediaan berkisar 6,00 - 6,45, polesan terbaik pada konsentrasi zat warna 20%:20%, selama 14 hari pengamatan warna pada semua sediaan tidak mengalami perubahan terhadap cahaya, dan sediaan yang paling disukai oleh panelis adalah sediaan dengan konsentrasi zat warna 20%:20%. Dengan demikian dapat disimpulkan bahwa kombinasi ekstrak etanol Ubi Jalar Ungu dan Bungu Kana Merah dapat digunkan sebagai pewarna alami dalam sediaan perona pipi. Kata kunci: Ipomoea batatas L., Canna coccinea Mill., Perona pipi

The Photometric Properties of the Ap Stars

1976 ◽  
Vol 32 ◽  
pp. 365-377 ◽  
Author(s):  
B. Hauck
Keyword(s):  
Physical Properties ◽  
Ap Stars

The Ap stars are numerous - the photometric systems tool It would be very tedious to review in detail all that which is in the literature concerning the photometry of the Ap stars. In my opinion it is necessary to examine the problem of the photometric properties of the Ap stars by considering first of all the possibility of deriving some physical properties for the Ap stars, or of detecting new ones. My talk today is prepared in this spirit. The classification by means of photoelectric photometric systems is at the present time very well established for many systems, such as UBV, uvbyβ, Vilnius, Geneva and DDO systems. Details and methods of classification can be found in Golay (1974) or in the proceedings of the Albany Colloquium edited by Philip and Hayes (1975).

The Infection of Cells by Bullet-Shaped Viruses

1969 ◽  
Vol 27 ◽  
pp. 372-373
Author(s):  
Frederick A. Murphy ◽  
Alyne K. Harrison ◽  
Sylvia G. Whitfield
Keyword(s):  
Electron Microscopy ◽  
Physical Properties ◽  
Host Cell ◽  
Thin Section ◽  
Cultured Cells ◽  
Cell Infection ◽  
Thin Section Electron Microscopy ◽  
Section Electron ◽  
Section Electron Microscopy

The bullet-shaped viruses are currently classified together on the basis of similarities in virion morphology and physical properties. Biologically and ecologically the member viruses are extremely diverse. In searching for further bases for making comparisons of these agents, the nature of host cell infection, both in vivo and in cultured cells, has been explored by thin-section electron microscopy.

Transmission electron microscopy of composite materials

1988 ◽  
Vol 46 ◽  
pp. 1012-1015
Author(s):  
K.P.D. Lagerlof
Keyword(s):  
Composite Materials ◽  
Physical Properties ◽  
Structural Defects ◽  
Structural Composites ◽  
Multiphase Materials ◽  
Structural Reinforcement ◽  
Transmission Electron ◽  
Reinforced Fiber ◽  
Particulate Reinforced Composites ◽  
Definition Of

Although most materials contain more than one phase, and thus are multiphase materials, the definition of composite materials is commonly used to describe those materials containing more than one phase deliberately added to obtain certain desired physical properties. Composite materials are often classified according to their application, i.e. structural composites and electronic composites, but may also be classified according to the type of compounds making up the composite, i.e. metal/ceramic, ceramic/ceramie and metal/semiconductor composites. For structural composites it is also common to refer to the type of structural reinforcement; whisker-reinforced, fiber-reinforced, or particulate reinforced composites [1-4].For all types of composite materials, it is of fundamental importance to understand the relationship between the microstructure and the observed physical properties, and it is therefore vital to properly characterize the microstructure. The interfaces separating the different phases comprising the composite are of particular interest to understand. In structural composites the interface is often the weakest part, where fracture will nucleate, and in electronic composites structural defects at or near the interface will affect the critical electronic properties.

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