A PHP Error was encountered

Severity: Warning

Message: file_get_contents(https://...@pubfacts.com&api_key=b8daa3ad693db53b1410957c26c9a51b4908&a=1): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests

Filename: helpers/my_audit_helper.php

Line Number: 176

Backtrace:

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 176
Function: file_get_contents

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 250
Function: simplexml_load_file_from_url

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 3122
Function: getPubMedXML

File: /var/www/html/application/controllers/Detail.php
Line: 575
Function: pubMedSearch_Global

File: /var/www/html/application/controllers/Detail.php
Line: 489
Function: pubMedGetRelatedKeyword

File: /var/www/html/index.php
Line: 316
Function: require_once

Effect of pH on the production of the antitumor antibiotic retamycin by Streptomyces olindensis. | LitMetric

Effect of pH on the production of the antitumor antibiotic retamycin by Streptomyces olindensis.

Biotechnol Appl Biochem

Departamento de Engenharia Química, Escola Politécnica da Universidade de São Paulo, P.O. Box 61548, CEP 05424-970, São Paulo, SP, Brazil.

Published: August 2004

The effect of pH on cell growth and retamycin production in batch bioreactor cultures of Streptomyces olindensis ICB20 was investigated. In fermentations pH-controlled over the range 6.0-8.0, the highest retamycin production was achieved at pH 7.0, and the maximum concentration of retamycin, about 1.36 A (absorbance) units, was about 43, 58 and 232% higher than the values obtained at pH 7.5, 6.0 and 8.0 respectively.

Download full-text PDF

Source
http://dx.doi.org/10.1042/BA20030166DOI Listing

Publication Analysis

Top Keywords

streptomyces olindensis
8
retamycin production
8
production antitumor
4
antitumor antibiotic
4
retamycin
4
antibiotic retamycin
4
retamycin streptomyces
4
olindensis cell
4
cell growth
4
growth retamycin
4

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!