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| Fu,Caili; Yan,Fen; Cao,Zeli; Xie,Fanying; Lin,Juan. |
| Kombucha is a health-promoting fermented beverage worldwide. The present study compared the free-radical scavenging abilities and total reducing power (TRP) of kombucha prepared from low-cost green tea (LGTK), black tea (BTK), and tea powder (TPK). LGTK had the highest scavenging abilities against 2,2-diphenyl-1-picrylhydrazyl (DPPH), superoxide anion and hydroxyl radicals, while BTK showed the highest TRP. Changes in content of probiotics in LGTK were investigated during storage as well. The number of acetic acid bacteria decreased moderately up to 10 days of storage. The number of lactic acid bacteria (LAB) decreased significantly, and their survival rate was only 0.98% at the 8th day of storage. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Kombucha; Antioxidant activities; Probiotics; Storage. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612014000100018 |
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| Lin,Juan; Zhou,Xuanwei; Fei,Jiong; Liao,Zhihua; Jin,Wang; Sun,Xiaofen; Tang,Kexuan. |
| A gene encoding a mannose-binding lectin, Pinellia pedatisecta agglutinin (PPA), was isolated from leaves of Pinellia pedatisecta using genomic walker technology. The ppa contained an 1140-bp 5-upstream region, a 771-bp open reading frame (ORF) and an 829-bp 3-downstream region. The ORF encoded a precursor polypeptide of 256 amino acid residues with a 24-amino acid signal peptide. There were one putative TATA box and six possible CAAT boxes lying in the 5-upstream region of ppa. The ppa showed significant similarity at the nucleic acid level with genes encoding mannose-binding lectins from other Araceae species such as Pinellia ternata, Arisaema heterophyllum, Colocasia esculenta and Arum maculatum. At the amino acid level, PPA also shared varying... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Genomic cloning; Genomic walker technology; Mannose-binding lectin; Pinellia pedatisecta; Pinellia pedatisecta agglutinin (PPA). |
| Ano: 2006 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452006000100003 |
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| Pi,Yan; Jiang,Keji; Hou,Rong; Gong,Yifu; Lin,Juan; Sun,Xiaofen; Tang,Kexuan. |
| Camptothecin and its derivatives are monoterpenoid indole alkaloids exhibiting significant anti-tumor actions. With the aim of improving the production of these pharmaceuticals, the contents of camptothecin and 10-hydroxycamptothecin in different tissues including roots, stems, leaves, young flower buds, opening flowers, fading flowers and seeds from Camptotheca acuminata, were investigated. The young flower buds had the highest alkaloid concentrations (camptothecin, 2.46 mg/g of dry weight; 10-hydroxycamptothecin, 1.41 mg/g of dry weight). Callus showed lower concentrations but it should also be considered as a potential source of these pharmaceuticals. In the present study, the growth rate of Camptotheca acuminata cells in culture did not correlate with... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: HPLC; Salicylic acid; UV-B. |
| Ano: 2010 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452010000300006 |
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