1.5.3 Isolation and Identification of Active Substances
Isolating and refining active substances from crude extract with confirmed bioactivity involves two kinds of approaches, chemical and instrumental. Prior to the
development of instrumental analysis, elemental analysis was principally used.
Today, isolation and analysis of substances is performed through innovative
chromatography techniques. No matter how advanced the instrumental analyses
may be, however, chemical methods should not be neglected; a complementary
approach is required.
Among the instrumental approaches used today for isolation analysis and
structural identification of bioactive materials are high performance liquid chromatography (HPLC), gas chromatography (GC), UV spectroscopy, mass spectrometry (MS), infrared spectroscopy, and nuclear magnetic resonance (NMR).
1.5.4 Synthesis of Biomaterials
Organisms contain small amounts of useful bioactive substances. Moreover,
because these organisms are collected for extraction, there is a risk of ecosystem
destruction. The growth of plants in particular is closely connected with the environment, and difficulties with mass-producing them for supplies within a defined
period of time result in limitations to their use in the pharmaceutical market or as
functional materials. One approach to overcoming these limitations is production
through structural identification and synthesis of extracted active substances.
Ideally, all synthesis would occur at the same stage. Problems with this include
difficulties with synthesizing structurally complex substance and declining yield
rates. A recent approach to addressing this problem has been to make an accurate
assessment of the pharmacology and effects once the effective components have
been isolated through precursors or other means, allowing for a determination of
their development potential as new pharmaceutical or functional materials.
1.5.5 Safety of Biomaterials
Once the efficacy of the final effective component is establishment, safety testing
(toxicity and pharmacological safety) is conducted to obtain a permit for manufacturing the product for clinical testing. Typically, ordinary researchers conduct
general pharmacology and acute toxicity testing on their own; once the possibilities
have been confirmed, toxicity and pharmacological testing is then commissioned
from a trustworthy institution.
Genetically engineered materials such as insulin, growth hormone, and interferons require more accurate safety determinations; even in the case of naturally
derived materials, the issue of provenance is extremely important. For fermentation
products such as Escherichia coli, testing must be conducted for other microbes and
external toxins.
18
1 What Is Marine Biotechnology?
Isolating and refining active substances from crude extract with confirmed bioactivity involves two kinds of approaches, chemical and instrumental. Prior to the
development of instrumental analysis, elemental analysis was principally used.
Today, isolation and analysis of substances is performed through innovative
chromatography techniques. No matter how advanced the instrumental analyses
may be, however, chemical methods should not be neglected; a complementary
approach is required.
Among the instrumental approaches used today for isolation analysis and
structural identification of bioactive materials are high performance liquid chromatography (HPLC), gas chromatography (GC), UV spectroscopy, mass spectrometry (MS), infrared spectroscopy, and nuclear magnetic resonance (NMR).
1.5.4 Synthesis of Biomaterials
Organisms contain small amounts of useful bioactive substances. Moreover,
because these organisms are collected for extraction, there is a risk of ecosystem
destruction. The growth of plants in particular is closely connected with the environment, and difficulties with mass-producing them for supplies within a defined
period of time result in limitations to their use in the pharmaceutical market or as
functional materials. One approach to overcoming these limitations is production
through structural identification and synthesis of extracted active substances.
Ideally, all synthesis would occur at the same stage. Problems with this include
difficulties with synthesizing structurally complex substance and declining yield
rates. A recent approach to addressing this problem has been to make an accurate
assessment of the pharmacology and effects once the effective components have
been isolated through precursors or other means, allowing for a determination of
their development potential as new pharmaceutical or functional materials.
1.5.5 Safety of Biomaterials
Once the efficacy of the final effective component is establishment, safety testing
(toxicity and pharmacological safety) is conducted to obtain a permit for manufacturing the product for clinical testing. Typically, ordinary researchers conduct
general pharmacology and acute toxicity testing on their own; once the possibilities
have been confirmed, toxicity and pharmacological testing is then commissioned
from a trustworthy institution.
Genetically engineered materials such as insulin, growth hormone, and interferons require more accurate safety determinations; even in the case of naturally
derived materials, the issue of provenance is extremely important. For fermentation
products such as Escherichia coli, testing must be conducted for other microbes and
external toxins.
18
1 What Is Marine Biotechnology?