scholarly journals Physico-chemical characters of the water in rice fields in relation to their suitability for breeding of the mosquito larvae, Anopheles sinensis

1979 ◽  
Vol 30 (2) ◽  
pp. 87-92 ◽  
Author(s):  
Takaya IKEMOTO ◽  
Ikuko SAKAKI
2021 ◽  
Vol 6 (1) ◽  
pp. 32-41
Author(s):  
Purwantiningsih Sugita ◽  
Muhamad Rifai ◽  
Laksmi Ambarsari ◽  
Dyah Utami Cahyaning Rahayu ◽  
Hanhan Dianhar

Gelatin has been widely used as an additive in food industry pharmaceutical, and  cosmetic. The similar physical appearance between bovine and porcine gelatin causes an issue for some communities like a Muslim due to awareness of halal food. This study aims to produce gelatin from femur bones of bovines with acid hydrolysis and their characteristics compared to standard gelatin of bovine and porcine. Bovine and porcine bones were soaked in 5% HCl for 10 days and every 2 days a HCl solution was replaced to get ossein. Ossein is hydrolyzed by gradual heating at 65, 75, and 85oC. Gelatin  confirmed by  the physico-chemical characters, FT-IR and analysis amino acid with HPLC.The results showed that the yield of bovine gelatin was 4.33%. The physico-chemical characters of bovine gelatin resulting from isolation and bovine gelatin standards are in conformity with porcine gelatin standards and meet the requirements of SNI 06-3735-1995 and GMIA. Therefore, bovine gelatin is specifically capable of substituting porcine gelatin for application in the pharmaceutical field. The FTIR spectrum of bovine gelatin shows the presence of amide A, amide I, amide II and amide III groups. The amino acid characters of gelatin were identified as glycine (13.57%) and proline (1.62%) for bovine gelatin and glycine (0.51%) and proline (0.09%) for porcine gelatin.


1970 ◽  
Vol 6 (6) ◽  
pp. 99-106
Author(s):  
Krishna R Bhattarai ◽  
Bharat B Shrestha ◽  
Hari D Lekhak

Physico-chemical (pH, conductivity, dissolved oxygen, alkalinity, hardness, nitrogen, heavy metal, etc) and bacteriological (coliform bacteria) characteristics of water were studied in samples collected from Sundarijal reservoir and its main feeding streams: Bagmati, Nagmati and Shyalmati in 2003 and 2004 AD. Human activities near the water bodies and sanitary condition of the residential areas of watershed were also examined. Although public awareness and proper management of watershed and reservoir premises were lacking, yet the physico-chemical characters were within the standard of World Health Organization (WHO) and European Commission (EC) for drinking water. However, the coliform bacteria were high and water was not safe to consume without intense treatments with disinfectants. Key words: Coliform; Heavy metals; Human activities; Physico-chemical characters; Sanitary condition. DOI: 10.3126/sw.v6i6.2643 Scientific World, Vol. 6, No. 6, July 2008 99-106


2018 ◽  
Vol 75 (1) ◽  
pp. 8
Author(s):  
A. Kishor ◽  
Raj Narayan ◽  
Manoj Brijwal ◽  
B. L. Attri ◽  
Anil Kumar ◽  
...  

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