scholarly journals Optimization of SRC (Semi Refined Carrageenan) and Glucomannan Concentration as Gelling Agent to the Physical Stability Sunscreen Gel of Dry Corncob Extract (Zea mays L.)

2019 ◽  
Vol 7 (22) ◽  
pp. 3833-3836 ◽  
Author(s):  
Kori Yati ◽  
Yudi Srifiana ◽  
Asri Indah Lestari
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Physical Stability ◽  
Optimal Concentration ◽  
Gelling Agent ◽  
Homogeneity Test ◽  
Corn Cob ◽  
Freeze Thaw ◽  
Organoleptic Test ◽  
Dispersive Power

BACKGROUND: Corncob is one of crude drug which containing phenolic compounds that can be used as an active ingredient for sunscreen preparations. In this study, extracts of dried corn cob made into a gel formulation using SRC (Semi Refined Carrageenan) and glucomannan as a gelling agent. AIM: This study aims to determine the optimal concentration of SRC (Semi Refined Carrageenan) and glucomannan to the physical stability of the gel. METHODS: Gel made into four formulas with a ratio of 1: 4 and the concentration of each formula was 1%, 1.5%, 2%, 2.5%. Each formula was evaluated for 6 weeks of storage that includes organoleptic test, homogeneity, pH, viscosity, dispersive power, freeze-thaw test and centrifugation. RESULTS: The results showed the fourth formula did not change the organoleptic test and homogeneity test. In the test separation of the freeze-thaw method, the fourth formula was stable, while in the centrifugation test formula 1 and 2 was been separation. pH and viscosity results obtained from statistics with a two-way ANOVA showed significant differences in each formula. CONCLUSION: From the results of this study concluded that the formula 3 with a concentration of 2% was the optimal concentration as a gelling agent.

FORMULASI GELHAND SANITIZER DARI KITOSAN DENGAN BASIS NATRIUM KARBOKSIMETILSELULOSA

2017 ◽  
Vol 1 (1) ◽  
pp. 31
Author(s):  
Supomo Supomo ◽  
Yullia Sukawati ◽  
Fredi Basyar
Keyword(s):  
Phase Separation ◽  
Side Effect ◽  
Physical Stability ◽  
Biocompatible Polymers ◽  
Homogeneity Test ◽  
Consistency Test ◽  
Hand Sanitizer ◽  
Gel Preparation ◽  
Dispersive Power ◽  
Chitosan Gel

Chitosan has been widely used in industrial, food, pharmaceuticals and agriculture. Chitosan is a natural biocompatible polymers means that as nature does not have the side effect, non-toxic, can not be easily digested and broken down by microbes (biodegradable). This study aims to determine whether the chitosan may be formulated into dosage gel hand sanitizer that meets the requirements of the physical stability of the gel.Chitosan is formulated with 3 varying concentrations of Na CMC basis of 3%, 4.5% and 6%. Tests conducted gel formulation is the physical stability test which includes organoleptic test, homogeneity, pH test, test dispersive power, viscosity test and test consistency. Testing is done every week for 4 weeks of storage.Results of testing physical properties of chitosan gel hand sanitizer has the shape and color stable but the resulting aroma change during storage. pH gel meet the requirements, the consistency test of phase separation does not occur, the homogeneity test showed no homogeneous gel, gel dispersive power does not meet the requirements, the viscosity of the gel preparation third formula does not meet the requirements of viscosity gel

scholarly journals Uji Fisik Sediaan Gel Ekstrak Tongkol Jagung (Zay Mays L)

2018 ◽  
Vol 3 (2) ◽  
Author(s):  
Indri Kusuma Dewi ◽  
Mey Rachmawati ◽  
Fathiya Abdinnisa' Ma'rifah ◽  
Puspita Susilowati
Keyword(s):  
Zea Mays ◽  
Water Content ◽  
Zea Mays L ◽  
Physical Appearance ◽  
Homogeneity Test ◽  
Test Results ◽  
Physical Test ◽  
Corn Cobs ◽  
Effect Method ◽  
Organoleptic Parameters

Abstract Background : Corn cobs have the potential to protect the skin, so far the research has only been limited to testing the extracts and has not been formed in a cosmetic preparation. Gel is a cosmetic preparation that is ideal for sunscreens because it is less oily, not sticky, soft, elegant, can form a layer of film that adheres well and protects the skin, and evaporation of water content creates a soothing and pleasant effect. Method: The method is used to determine the physical appearance of the gel with organoleptic parameters, homogeneity, dispersion and absorbency. Result: The purpose of this study was to determine the results of the physical test of sunscreen gel preparations from corn cobs extract (Zea mays L). Conclusion: The physical test results from the sunscreen gel extract of corn cobs extract (Zay Mays L.) had the results of organoleptic test, homogeneity test, spreadability test and adherence to the standard.

scholarly journals Formulation of handsanitizer with antibacterials substance from n-hexane extract of soursop leaves (Annona Muricata Linn)

2017 ◽  
Vol 13 (1) ◽  
Author(s):  
Dian Riana Ningsih ◽  
Zusfahair Zusfahair ◽  
Dwi Kartika ◽  
Amin Fatoni
Keyword(s):  
Antibacterial Activity ◽  
Diffusion Method ◽  
Homogeneity Test ◽  
Annona Muricata ◽  
Consistency Test ◽  
Power Test ◽  
Hand Sanitizer ◽  
Organoleptic Test ◽  
Dispersive Power ◽  
Growth Of Bacteria

One of the plants which are efficacious as antibacterial is the soursop leaves. Soursop leaves were extracted by maceration using n-hexane. The extract was evaporated using rotary evaporator. Soursop leaves extract was then formulated in a gel dosage form. This study aims toformulate hand sanitizer from soursop leaves extract based on Growing Minimum Inhibitory Concentrations (MIC) of n-hexaneextract of soursop leaves, and to know the evaluation result of gel dosage with the active substance of soursop leaves extract. Testing of physical properties of the gel includes organoleptic test, dispersive power test, homogeneity, pH, and consistency test. Antibacterial activity was tested by using a diffusion method. The evaluation of the gel showed SNI standards which wereable for topical use. The organoleptic test resultedthat the dosage is odorless, transparent and gel. Homogeneity test resulted that all gel dosage concentrations are homogenous. The pH tests at concentrations of 1, 5 and 10 ppm respectively are 5.38 to 6.22; 5.48 to 6.28; and from 5.29 to 5.90. The dispersive power test resulted for 6.47 to 7 cm; 6.20 to 6.87 cm; and 6.09 to 6.59 cm. The consistency test resulted that all gel dosages are consistent in gel form.Gel dosage with extract concentrations of 1, 5 and 10 ppm can inhibit the growth of bacteria P. acne with antibacterial activity of 3.53; 3.26 and 2.20 mm. 

scholarly journals Formulasi dan Karakterisasi Sediaan Nanoemulgel Serbuk Lidah Buaya (Aloe Vera L.)

2019 ◽  
Vol 16 (1) ◽  
pp. 28-37
Author(s):  
Teguh Imanto ◽  
Roseh Prasetiawan ◽  
Erindyah Retno Wikantyasning
Keyword(s):  
Particle Size ◽  
Zeta Potential ◽  
Physical Properties ◽  
Physical Stability ◽  
Aloe Vera ◽  
Tween 80 ◽  
Gelling Agent ◽  
Freeze Thaw ◽  
Particle Size Analyzer ◽  
Oil In Water

Aloe vera L. contains antiseptic saponins and anthraquinone complexes as antibacterial. This research was conducted to formulate aloe vera powder into nanoemulgel, characterize and test its physical properties, and to know the effect of gelling agent concentration (carbopol and chitosan) on nanoemulgel. Emulsion type used is oil in water (O / W) with surfactant tween 80 and co-surfactant propylene glycol. Nanoemulsion is characterized by percent of transmittance with UV-Vis spectrophotometer, also potential droplet and zeta size distribution with Particle Size Analyzer. Hydrogels consist of 4 combination formulas of carbopol 0.5%; 1%; 1.5%; 2% and 0.3% chitosan. The formula is tested for physical properties including organoleptic, pH, spreadability, adhesion, viscosity and stability with freeze thaw method. The results showed that the nanoemulsion droplet size was 65.05nm ± 13.49 with zeta potential of -0.1mV and the percent of transmittance above 98%. The result of physical properties of the four formulas shows that the different gelling agent concentration gives different physical properties of viscosity and spreadability. Overall, formula 3 has the best physical properties and physical stability compared to formula 1, 2 and 4.

scholarly journals Effect of Nitrogen Nutritional Stress on Some Growth Parameters of Zea mays L. and Vigna unguiculata (L.) Walp.

2013 ◽  
Vol 5 (1) ◽  
pp. 79-85 ◽  
Author(s):  
Akinbode Foluso OLOGUNDUDU ◽  
Adekunle ADELUSI
Keyword(s):  
Zea Mays ◽  
Nutrient Solution ◽  
Vigna Unguiculata ◽  
Zea Mays L ◽  
Growth Parameters ◽  
Biomass Accumulation ◽  
Dry Weight ◽  
Nutritional Stress ◽  
Optimal Concentration ◽  
Shoot Height

This study investigated the responses of maize (Zea mays L.) and cowpea (Vigna unguiculata L. Walp.) seedlings growth parameters to nitrogen nutritional stress. This was with a view to determining whether nitrogen nutritional stress would retard or enhance maize and cowpea growth, partly, wholly or not at all through its effect on biomass accumulation and some morphological parameters. Germination of seeds was done using treated sand in sixty plastic pots. A group of the seedlings was nutrient stressed by administering 200 ml of complete nutrient solution minus nitrogen (-N) while the other groups were fed with five times (X5N) and ten times (X10N) the optimal concentration of nitrogen and the last regime was fed with full nutrient solution (FN). The effects of optimal concentration and nitrogen stress on the growth rates (as measured by their fresh and dry weight) were studied. The result of the growth analysis showed that there was increase in shoot height with supraoptimal concentrations of nitrogen treatments (X10N and X5N) while there was a decrease in shoot height with minus nitrogen (-N) regimes. The observed higher biomass (dry matter yield) under the FN regimes in both Zea mays and Vigna unguiculata were attributed to optimal nutrient assimilation rate.

scholarly journals UPLC-ESI-QTOF-MS2-Based Identification and Antioxidant Activity Assessment of Phenolic Compounds from Red Corn Cob (Zea mays L.)

Molecules ◽  
2018 ◽  
Vol 23 (6) ◽  
pp. 1425 ◽  
Author(s):  
María Hernández ◽  
Janeth Ventura ◽  
Cecilia Castro ◽  
Víctor Boone ◽  
Romeo Rojas ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Zea Mays ◽  
Phenolic Compounds ◽  
Zea Mays L ◽  
Corn Cob ◽  
Activity Assessment

Influence de l'âge sur les caractéristiques photosynthétiques de la feuille de maïs, Zea mays L

Agronomie ◽  
1982 ◽  
Vol 2 (2) ◽  
pp. 159-166 ◽  
Author(s):  
Olivier BETHENOD ◽  
Christine JACOB ◽  
Jean-Claude RODE ◽  
Jean-François MOROT-GAUDRY
Keyword(s):  
Zea Mays ◽  
Zea Mays L

PRODUKTIVITAS PUPUK ORGANIK TERHADAP HASIL TANAMAN JAGUNG (Zea mays L) DI TANAH MINERAL

1970 ◽  
Vol 3 (2) ◽  
pp. 318-326
Author(s):  
Yoyon Riono.
Keyword(s):  
Zea Mays ◽  
Zea Mays L

Penelitian tentang pengaruh pemberian produktivitas pupuk organik terhadap hasil Tanaman Jagung (Zea mays L) di tanah mineral penelitian ini di laksanakan pada bulan Februari sampai Mei, yang bertempat di Sungai Salak Kecsmstsn Tempuling Kabupaten Indragiri Hilir Provinsi Riau. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) yang disusun secara faktorial yang terdiri dari 2 faktor dan 3 ulangan. Faktor B adalah bokashi pupuk kandang yang terdiri dari 4 taraf yaitu B0 (tanpa pemberianpupuk kandang), B1 (5 ton/ha) dan B2 (10 tom/ ha), serta B3 (15 ton/ha) Parameter yang di amati adalah tinggi tanaman, panjang daun ke tujuh, berat brangkasan basah, berat berangkasan kering, berat tongkol pertanaman sampel, diameter tongkol , produksi per plot, dan berat 100 biji. Selanjutnya data yang di peroleh di olah secara statistik, apabila F hitung lebih besar dari F tabel di lanjutkan dengan uji lanjut Tukey HSD pada taraf 5%. Hasil penelitian menunjukan bahwa interaksi bokashi pupuk kandang dan varietas berpengaruh nyata terhadap berat tongkol dan produksi dan produksi per plot, akan tetapi tidak berpengaruh nyata terhadap tinggi tanaman, panjang daun ke tujuh, berat brangkasan basah, berat brangkasan kering , diameter tongkol dan berat 1000 biji. Untuk perlakuan bokashi pupuk kandang secara tunggal berpengaruh nyata terhadap terhadap diameter tongkol , akan tetapi tidak berpengaruh nyata terhadap tinggi tanaman, panjang daun ke tujuh, berat brangkasan basah, berat brangkasan kering, berat tongkol, produksi per plot, dan berat 1000 biji, perlakuan bokashi terbaik terdapat pada pemberian 15 ton/ha. Sedangkan perlakuan varietas secara tunggal berpengaruh nyata terhadap berat brangkasan basah, berat tongkol, dan produksi per plot seta berat 1000 biji, akan tetapi tidak berbeda nyata dengan tinggi tanaman, panjang daun ke tujuh, berat brangkasan kering, dan diameter tongkol. Varietass terbaik adalah NT 10

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