{"id":1221,"date":"2018-08-14T23:38:01","date_gmt":"2018-08-14T23:38:01","guid":{"rendered":"https:\/\/integrativewellnessandmovement.com\/iwmbasicscience\/?p=1221"},"modified":"2018-08-14T23:48:51","modified_gmt":"2018-08-14T23:48:51","slug":"microbiology-effects-of-ph","status":"publish","type":"post","link":"https:\/\/integrativewellnessandmovement.com\/iwmbasicscience\/microiology\/microbiology-effects-of-ph\/","title":{"rendered":"Microbiology: Effects of pH."},"content":{"rendered":"<p>The environment&#8217;s pH affects the growth of organisms. Generally, bacteria grows between pH 4-9 and optimally between pH 6.5-7.5. Fungi may be found in more acidic environments between a pH of 4-6.<\/p>\n<p><strong>Acidophiles<\/strong>: grow between pH 0-7 and optimally around pH 3.5.<\/p>\n<p><strong>Neutrophiles<\/strong>: grow between pH 3.5-10.5 and optimally around pH 7.<\/p>\n<p><strong>Alkalophiles<\/strong>: grow between pH 7-14 and optimally around pH 10.5.<\/p>\n<p>The by-products of an organism&#8217;s metabolism may cause pH of the environment to shift (e.g. more acidic or more basic). A build-up of by-products could inhibit or be detrimental to the organism&#8217;s growth.<\/p>\n<p>A buffer system (salt of a weak acid and salt of a weak base) may be added to the growth medium to help counter slight shifts in pH.<\/p>\n<p><a href=\"https:\/\/integrativewellnessandmovement.com\/iwmbasicscience\/wp-content\/uploads\/2018\/08\/pHenvironment.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-1226 aligncenter\" src=\"https:\/\/integrativewellnessandmovement.com\/iwmbasicscience\/wp-content\/uploads\/2018\/08\/pHenvironment.jpg\" alt=\"\" width=\"576\" height=\"284\" srcset=\"https:\/\/integrativewellnessandmovement.com\/iwmbasicscience\/wp-content\/uploads\/2018\/08\/pHenvironment.jpg 576w, https:\/\/integrativewellnessandmovement.com\/iwmbasicscience\/wp-content\/uploads\/2018\/08\/pHenvironment-300x148.jpg 300w\" sizes=\"auto, (max-width: 576px) 100vw, 576px\" \/><\/a><\/p>\n<p><strong>Clinical significance<\/strong>. Organisms can grow at human body temperature. Many organisms cannot tolerate the acidity of the stomach (pH 2.0). The skin is also a barrier as its pH is around 4-7. The varying pH of different systems in the body act as a stopgap to help prevent infections.<\/p>\n<p>Reference<\/p>\n<p>Cappuccino,\u00a0J.\u00a0G., &amp; Welsh,\u00a0C. (2018).\u00a0<em>Microbiology: A laboratory manual<\/em>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The environment&#8217;s pH affects the growth of organisms. Generally, bacteria grows between pH 4-9 and optimally between pH 6.5-7.5. Fungi may be found in more acidic environments between a pH of 4-6. Acidophiles: grow between pH 0-7 and optimally around pH 3.5. Neutrophiles: grow between pH 3.5-10.5 and optimally around pH 7. Alkalophiles: grow between [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[36],"tags":[],"class_list":["post-1221","post","type-post","status-publish","format-standard","hentry","category-microiology"],"_links":{"self":[{"href":"https:\/\/integrativewellnessandmovement.com\/iwmbasicscience\/wp-json\/wp\/v2\/posts\/1221","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/integrativewellnessandmovement.com\/iwmbasicscience\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/integrativewellnessandmovement.com\/iwmbasicscience\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/integrativewellnessandmovement.com\/iwmbasicscience\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/integrativewellnessandmovement.com\/iwmbasicscience\/wp-json\/wp\/v2\/comments?post=1221"}],"version-history":[{"count":4,"href":"https:\/\/integrativewellnessandmovement.com\/iwmbasicscience\/wp-json\/wp\/v2\/posts\/1221\/revisions"}],"predecessor-version":[{"id":1227,"href":"https:\/\/integrativewellnessandmovement.com\/iwmbasicscience\/wp-json\/wp\/v2\/posts\/1221\/revisions\/1227"}],"wp:attachment":[{"href":"https:\/\/integrativewellnessandmovement.com\/iwmbasicscience\/wp-json\/wp\/v2\/media?parent=1221"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/integrativewellnessandmovement.com\/iwmbasicscience\/wp-json\/wp\/v2\/categories?post=1221"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/integrativewellnessandmovement.com\/iwmbasicscience\/wp-json\/wp\/v2\/tags?post=1221"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}