http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 주제어 : salvia spp (검색결과 3 건)
- 무료
- 기관 내 무료
- 유료
-
Effects of Salts on Rheological Behaviour of Salvia Hydrogels
Yudianti, Rike,Karina, Myrtha,Sakamoto, Masahiro,Azuma, Jun-ichi The Polymer Society of Korea 2009 Macromolecular Research Vol.17 No.5
Rheological behavior of natural hydrogel produced from seeds of three Salvia spp. (S. miltiorrhiza (SM), S. sclarea (SS), S. viridis (SV)) was investigated by using a Rheometer equipped with a cone and plate geometry measuring system under never-dried condition. Different chemical contents of such hydrogels give significant effects on their rheological properties. Because of incomplete penetration of water inside the hydrogels after drying before-dried hydrogels were used for rheological analysis. To know molecular interactions which predominated in the gel formation, some constituents were externally added to the 1.0% (w/w) hydrogel. Addition of urea to disrupt hydrogen bonds reduced 3.4-67% viscosity of the untreated hydrogels and changed viscoelastic properties from gel to liquid-like behavior. Neutral salts added to the hydrogel solution at 0.1 M also lowered the viscosity in a manner related with increase in size of cations and temperature. Changing from gel state to liquid-like state was also easily confirmed by oscillation measurement (storage, G', and loss, G", modulii) typically observed in the cases of potassium sulfate and potassium thiocyanate. Influence of pH variation on the viscosity explained that weak alkaline condition (pH 8-9) creates a higher resistance to flow due to increasingly electrostatic repulsions between negative charges ($COO^-$) Importance of calcium bridges was also demonstrated by recovery of viscosity of the hydrogels by addition of calcium after acidification. The summarized results indicate that electrostatic repulsion is a major contributor for production of hydrogel structure.
-
Genetic relationships and diversity within cultivated accessions of Salvia officinalis L. in Turkey
Tursun Ayse Ozlem,Sipahioglu Hikmet Murat,Telci Isa 한국식물생명공학회 2021 Plant biotechnology reports Vol.15 No.5
Sage (Salvia officinalis L.) is not found in Turkey's natural flora; however, its cultivation has been increasing in recent years. The species is widely cultivated in many provinces of the Aegean and the Mediterranean regions. There has been no informa- tion regarding genetic characteristics and the intra-individual phylogeny of cultivated sage. The levels of genetic relatedness of 19 Salvia samples from Izmir were determined by molecular tools. The sequences from the internal transcriber spacer (ITS) region of 18S–28S nuclear ribosomal DNA (nrDNA) locus were amplified by PCR and sequenced. Approximately, a 710 bp single amplified product was obtained in all genotypes. Of the nineteen Salvia specimens, six were identified as Salvia x sylvestris L. and the remaining 13 specimens were S. officinalis. The sequences of both species shared no similar secondary structures. The ITS region of all specimens contains several indels and substitutions. In the phylogenetic dendrogram, three major clusters (I, II, and III) and two independent branches (IV and V) were observed. Ninety-seven percent of local Salvia specimens were clustered in two branches (I and II), indicating a high diversity of genetic relatedness. Sequence divergence was higher among the specimens of S. officinalis than the specimens of Salvia x sylvestris.
-
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
