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Gum Guaicum, also known as guaiac resin or guaiac gum, is a natural resin obtained from the wood of trees belonging to the genus Guaiacum, primarily Guaiacum officinale and Guaiacum sanctum.
Gum Guaicum is a solid, aromatic, yellowish to brownish resin that is slightly soluble in alcohol and ether but insoluble in water.
CAS Number:
9000-66-6
Synonyms:
Guaiac resin,Guaiacum resin,Guaicum,Lignum vitae resin,Guaiacum wood resin,Gum guaiacum,Guaiacum officinale resin,Guaia gum
Introduction
Gum Guaicum, commonly known as Guaiacum resin or lignum vitae resin, is a natural exudate derived primarily from species of the genus Guaiacum.
This resin has been used since antiquity in traditional medicine and perfumery, as well as in chemical assays, owing to its unique chemical properties.
The resin is a complex mixture of resin acids, volatile oils, and other compounds which confer both biological and industrial value.
Botanical Sources and Geographic Distribution
Gum Guaicum is primarily sourced from Guaiacum officinale L. and Guaiacum sanctum L., trees native to the Caribbean and parts of Central America.
These species belong to the family Zygophyllaceae.
The trees are slow-growing hardwood species commonly found in tropical dry forests.
Guaiacum officinale: Native to the Caribbean islands, especially Jamaica, Cuba, and the Bahamas.
Guaiacum sanctum: Common in Florida, Mexico, and parts of Central America.
The trees produce a resinous exudate when their bark or wood is wounded, which hardens into the solid gum guaicum.
Historical Background and Traditional Uses
Historically, gum guaicum has been prized for its medicinal properties since pre-Columbian times. Indigenous peoples used it as a remedy for rheumatism, syphilis, respiratory ailments, and as a topical treatment for wounds.
In Europe, guaiacum was introduced in the 16th century and became known as “lignum vitae” (wood of life) for its reputed curative powers.
It was also used as a diagnostic reagent in the guaiac test for occult blood in stool samples.
Chemical Composition
Gum Guaicum is a complex mixture of:
Resin acids: Guaiaconic acid, guaiacolate
Phenolic compounds: Guaiacyl derivatives
Volatile oils: Terpenes such as guaiol, cadinene, and others
Other constituents: Wax, lignans, carbohydrates
The resin’s main active components are guaiac resin acids and volatile oils, which contribute to its pharmacological effects and chemical reactivity.
Extraction and Isolation Techniques
Collection
The resin is obtained by incising the bark or wood of Guaiacum trees. The exudate hardens and is collected manually.
Solvent Extraction
The crude resin is subjected to solvent extraction with organic solvents such as ethanol, methanol, or ether to separate resin acids and volatile components.
Purification
Purification is achieved through recrystallization, chromatography (e.g., silica gel column), or fractional distillation to isolate specific compounds.
Yield and Quality
The resin yield depends on species, tree age, climate, and extraction method, ranging from 1 to 5% of dry wood weight.
Physical and Chemical Properties
Appearance: Hard, brittle, translucent yellow to reddish-brown solid
Odor: Characteristic balsamic, resinous
Solubility: Insoluble in water, soluble in alcohol, ether, chloroform
Melting point: Approximately 100-120°C
Chemical behavior: Reacts with oxidizing agents, undergoes resinification upon air exposure
Analytical Methods for Identification and Quantification
Chromatographic Techniques
Gas Chromatography (GC): Analysis of volatile oils
High-Performance Liquid Chromatography (HPLC): Quantification of resin acids and phenolics
Thin Layer Chromatography (TLC): Rapid identification of constituents
Spectroscopic Methods
UV-Visible Spectroscopy: For phenolic compounds
Infrared (IR) Spectroscopy: Functional group identification
Nuclear Magnetic Resonance (NMR): Structural elucidation
Mass Spectrometry (MS): Molecular weight and fragmentation patterns
Pharmacological and Medicinal Properties
Anti-inflammatory Effects
Gum guaicum exhibits anti-inflammatory activity attributed to its resin acids and phenolic constituents, which inhibit pro-inflammatory mediators.
Antioxidant Properties
Phenolic compounds in gum guaicum scavenge free radicals, contributing to antioxidant effects.
Diagnostic Use
The guaiac test utilizes gum guaicum’s peroxidase-like activity to detect blood in stool, serving as a screening tool for gastrointestinal bleeding.
Other Potential Effects
Traditional claims include antimicrobial, expectorant, and analgesic effects, though clinical evidence remains limited.
Industrial and Commercial Applications
Perfumery
Volatile oils extracted from gum guaicum are used as fragrance components in perfumery.
Chemical Reagent
Gum guaicum is employed as an oxidizable indicator in laboratory assays, especially in hemoccult tests.
Wood and Varnishes
Due to its resinous nature, gum guaicum is used in varnish formulations and as a wood hardener.
Pharmaceutical Preparations
Traditional remedies and some modern preparations incorporate gum guaicum as an active or excipient ingredient.
SAFETY INFORMATION ABOUT GUM GUAICUM
First aid measures:
Description of first aid measures:
General advice:
Consult a physician.
Show this safety data sheet to the doctor in attendance.
Move out of dangerous area:
If inhaled:
If breathed in, move person into fresh air.
If not breathing, give artificial respiration.
Consult a physician.
In case of skin contact:
Take off contaminated clothing and shoes immediately.
Wash off with soap and plenty of water.
Consult a physician.
In case of eye contact:
Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician.
Continue rinsing eyes during transport to hospital.
If swallowed:
Do NOT induce vomiting.
Never give anything by mouth to an unconscious person.
Rinse mouth with water.
Consult a physician.
Firefighting measures:
Extinguishing media:
Suitable extinguishing media:
Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
Special hazards arising from the substance or mixture
Carbon oxides, Nitrogen oxides (NOx), Hydrogen chloride gas
Advice for firefighters:
Wear self-contained breathing apparatus for firefighting if necessary.
Accidental release measures:
Personal precautions, protective equipment and emergency procedures
Use personal protective equipment.
Avoid breathing vapours, mist or gas.
Evacuate personnel to safe areas.
Environmental precautions:
Prevent further leakage or spillage if safe to do so.
Do not let product enter drains.
Discharge into the environment must be avoided.
Methods and materials for containment and cleaning up:
Soak up with inert absorbent material and dispose of as hazardous waste.
Keep in suitable, closed containers for disposal.
Handling and storage:
Precautions for safe handling:
Avoid inhalation of vapour or mist.
Conditions for safe storage, including any incompatibilities:
Keep container tightly closed in a dry and well-ventilated place.
Containers which are opened must be carefully resealed and kept upright to prevent leakage.
Storage class (TRGS 510): 8A: Combustible, corrosive hazardous materials
Exposure controls/personal protection:
Control parameters:
Components with workplace control parameters
Contains no substances with occupational exposure limit values.
Exposure controls:
Appropriate engineering controls:
Handle in accordance with good industrial hygiene and safety practice.
Wash hands before breaks and at the end of workday.
Personal protective equipment:
Eye/face protection:
Tightly fitting safety goggles.
Faceshield (8-inch minimum).
Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).
Skin protection:
Handle with gloves.
Gloves must be inspected prior to use.
Use proper glove
removal technique (without touching glove's outer surface) to avoid skin contact with this product.
Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices.
Wash and dry hands.
Full contact:
Material: Nitrile rubber
Minimum layer thickness: 0.11 mm
Break through time: 480 min
Material tested:Dermatril (KCL 740 / Aldrich Z677272, Size M)
Splash contact
Material: Nitrile rubber
Minimum layer thickness: 0.11 mm
Break through time: 480 min
Material tested:Dermatril (KCL 740 / Aldrich Z677272, Size M)
It should not be construed as offering an approval for any specific use scenario.
Body Protection:
Complete suit protecting against chemicals, The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace.
Respiratory protection:
Where risk assessment shows air-purifying respirators are appropriate use a fullface respirator with multi-purpose combination (US) or type ABEK (EN 14387) respirator cartridges as a backup to engineering controls.
If the respirator is the sole means of protection, use a full-face supplied air respirator.
Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU).
Control of environmental exposure
Prevent further leakage or spillage if safe to do so.
Do not let product enter drains.
Discharge into the environment must be avoided.
Stability and reactivity:
Chemical stability:
Stable under recommended storage conditions.
Incompatible materials:
Strong oxidizing agents:
Hazardous decomposition products:
Hazardous decomposition products formed under fire conditions.
Carbon oxides, Nitrogen oxides (NOx), Hydrogen chloride gas.
Disposal considerations:
Waste treatment methods:
Product:
Offer surplus and non-recyclable solutions to a licensed disposal company.
Contact a licensed professional waste disposal service to dispose of this material.
Contaminated packaging:
Dispose of as unused product
