Synthesis of Alkyl Polyglycoside and its Application in the Glyphosate

2014 ◽  
Vol 716-717 ◽  
pp. 126-129
Author(s):  
Guo Mei Xu ◽  
Tie Jun Shi
Keyword(s):  
Citric Acid ◽  
Sweet Potato ◽  
Sulfonic Acid ◽  
Raw Materials ◽  
Potato Starch ◽  
Synthesis Conditions ◽  
Composite Catalysts ◽  
Toluene Sulfonic Acid ◽  
Sweet Potato Starch ◽  
Almost All

Using sweet potato starch, butanol, and dodecyl alcohol as raw materials, the alkyl indican surfactant was synthesized by two-step reactions with composite catalysts of p-toluene sulfonic acid and citric acid, the synthesis conditions were investigated through orthogonal method and the structure of the product was characterized by IR and mass spectroscopy. The weeding test was also studied by adding the appropriate proportion of alkyl indican surfactant. The results showed that the best technological conditions was: reaction took place under 120 C and last for 4 h, msweet potato starch:mn-butanol: mn-dodecanol=msp:mnb:mnd=1:2:5, the content of composite catalysts was 1.6 wt% p-toluene sulfonic acid and 10.0 wt% citric acid. The weeding test demonstrated that added 1% APG into the glyphosate could killed almost all weeds in five days and had an excellent weeding efficiency. Compared with spraying glyphosate with no APG, which could decrease the amount of glyphosate used and protect the environment.

scholarly journals Fat Mimicking Properties of Citric Acid Treated Sweet Potato Starch

2015 ◽  
Vol 19 (1) ◽  
pp. 139-153 ◽  
Author(s):  
A. Surendra Babu ◽  
R. Parimalavalli ◽  
K. Jagannadham ◽  
J. Sudhakara Rao ◽  
R. Shalini Gaur
Keyword(s):  
Citric Acid ◽  
Sweet Potato ◽  
Potato Starch ◽  
Sweet Potato Starch

scholarly journals The Preparation and Characterization of A Co-Processed Excipient from Purple Sweet Potato (Ipomoea batatas L) Starch and Avicel PH101

2020 ◽  
pp. 344-350
Author(s):  
Muhammad Hengki Purnama Halim ◽  
Ungsari Rizki Eka Purwanto ◽  
Endang Diyah Ikasari
Keyword(s):  
Moisture Content ◽  
Physical Properties ◽  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Raw Materials ◽  
Potato Starch ◽  
Design Expert ◽  
Sweet Potato Starch ◽  
Purple Sweet Potato

The Indonesian pharmaceutical industries still rely on imports for more 90% of active raw materials and excipient raw materials. A research is needed to develop the production of pharmaceutical excipients, especially those derived from natural ingredients, to support the country's economy. One source of natural materials are widely available in Indonesia and can be developed is starch from Purple Sweet Potato (Ipomoea batatas L). Starch is often used as dilluent, disintegrat and binder in tablet formulation. Starch, including starch from Purple Sweet Potato, was an excipient tablet that had bad flowability and compressibility, so that the physical properties need to be improved. One way to improve the characterization of amilum is co-processing. The purpose of this study was to develop a co-process from Purple Sweet Potato Starch and combined with Avicel PH 101 as excipient fillers for tablets. The method used in the preparation of these co-process was wet granulation. The formula determination was caried out with Design Expert 10.0.1 software. Results obtained from experiments and recommendation formula from Design Expert 10.0.1 was verified with One Simple T-test with confidence level of 95%. Based on the results it can be concluded that the increased concentration of purple sweet potato starch increased moisture content and lowering compressibility and density. While the increased concentration of Avicel PH 101 increased compressibility and density; it could lower moisture content and the flowability time. The formula that gave the best characteristic of co-processed was obtained at a concentration of purple sweet potato starch and Avicel PH 101 on 62.493%: 37.507%. Based on One Simple T-Test, there is no significant difference between the experimental results with recommendation formula from Design Expert 10.0.1. From the FT-IR test results may indicate that the formation of the co-process did not change the form of the chemical structure of substances, but only changed the physical properties of substance. Based on the results of SEM, the morphology of the shape bond formation co-process so that the granules become larger and purple sweet potato starch forms a round and partly change shape after do the heating at 60°C. Keyword : Co-processing, Purple_Sweet_Potato, Starch, Avicel_PH101, FTIR

Composition of White Potato Starch (Ipomea batatas L.) with Avocado Seed Starch (Persea americana Mill) and Glyserol Concentration in Edible Film

2020 ◽  
Vol 2 (2) ◽  
Author(s):  
Musdar Musdar ◽  
Lukmanul Hakim ◽  
Juliani Juliani ◽  
Jailani Jailani
Keyword(s):  
Sweet Potato ◽  
Potato Starch ◽  
Persea Americana ◽  
Edible Film ◽  
Glycerol Concentration ◽  
White Potato ◽  
Ipomea Batatas ◽  
Sweet Potato Starch ◽  
Local Plants ◽  
Avocado Seed

White sweet potato starch (Ipomea batatas L.) and avocado seed starch (Parsea americana Mill) derived from local plants have the potential to be developed as agricultural products. Starch is a hydrocolloid compound as a potential local resource to be utilized. Glycerol function as an anti-freezing which is hygroscopic. This study aims to determine the ratio of white sweet potato starch with avocado seed starch and the concentration of glycerol for making edible film. This study was an experiment using a completely randimized factorial design with 2 (two) main factor consisting of a comparison of white sweet potato starch and avocado seed with 3 levels: P1 = 35%:65%., P2=50%:50%., P3=65%:35% and glycerol concentration with 3 levels: G1=1%., G2=2%., G3=3%. The best result reasearch were content of 23.03% (tratment P1G1), solubility of 55.57% (treatment P3G2)., swelling test of 9.83% (treatment P2g3)., elongation of 8.18% (treatment P3G2)

scholarly journals Utilization of By-products in Manufacture of Sweet Potato Starch

1973 ◽  
Vol 20 (9) ◽  
pp. 405-410 ◽  
Author(s):  
MASAYOSHI TAKAKUWA ◽  
EIKO FURUKAWA
Keyword(s):  
Sweet Potato ◽  
Potato Starch ◽  
Sweet Potato Starch ◽  
By Products

Study on Synthesis of Ester of Citric Acid and Palmityl Alcohol

2014 ◽  
Vol 900 ◽  
pp. 361-364
Author(s):  
Xiao Hui Wang ◽  
Xi Hua Du ◽  
Li Min Dong
Keyword(s):  
Reaction Time ◽  
Citric Acid ◽  
Cation Exchange ◽  
Sulfonic Acid ◽  
Exchange Resin ◽  
Cation Exchange Resin ◽  
Molar Ratio ◽  
Esterification Reaction ◽  
Process Conditions ◽  
Toluene Sulfonic Acid

Esters of Citric acid and palmityl alcohol were synthesized by esterification reaction under catalysis of cation exchange resin and P-toluene sulfonic acid respectively. The effects of amount of catalyst, ratio of raw materials, reaction time and temperature on the synthesis reaction were investigated . The experimental results showed that optimum of process conditions were 1:1~1:1.5 molar ratio of citric acid and palmityl alcohol, reaction temperature of 130~140°C, reaction time of 2 h. Conversion of palmityl alcohol were all more than 90% under 0.3% dosage using p-toluene sulfonic acid as the catalyst, or 0.5% dosage using 721 cation exchange resin with sulfonic acid type as catalyst. The synthesized product had good surface activity.

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