Botany Medicinal Plants Overview
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Questions and Answers

What happens to aromatic drugs stored under bad conditions?

  • They become liquid.
  • They become more aromatic.
  • They lose their aroma. (correct)
  • They gain additional medicinal properties.

Medicinal plants should always be stored in direct sunlight to maintain their potency.

False (B)

What should be used to store small quantities of crude drugs?

Moisture-free, air proof, light proof containers at low temperature.

Which of the following is NOT a biological factor affecting the storage of drugs?

<p>Heat Treatment (D)</p> Signup and view all the answers

Drugs should be stored in clear bottles to avoid the effects of light.

<p>False (B)</p> Signup and view all the answers

Fresh medicinal plant material should be stored at _______.

<p>low temperature</p> Signup and view all the answers

Match the following storage conditions with their descriptions:

<p>Well Aerated = Allows for air exchange to prevent moisture buildup Light Proof = Prevents exposure to light that can degrade compounds Humidity Control = Maintains consistent moisture levels Inert Gas Storage = Prevents oxidation of volatile and fixed oils</p> Signup and view all the answers

What is the composition of T-Gas used in fumigation?

<p>90% CO2 and 10% Ethylene Oxide</p> Signup and view all the answers

Which factor is NOT considered a physico-chemical factor affecting drug storage?

<p>Bacteria (D)</p> Signup and view all the answers

The addition of inferior material to deceive consumers is known as _/_.

<p>sophistication</p> Signup and view all the answers

Match the types of adulterations with their descriptions:

<p>Sophistication = Addition of inferior material with intent to defraud Admixture = Accidental addition of one article to another Spoilage = Deterioration by action of bacteria or fungi Substitution = Entirely different article used in place of original</p> Signup and view all the answers

Fermentation of medicinal plants is always considered undesirable.

<p>False (B)</p> Signup and view all the answers

What temperature range is ideal for accelerating the enzymatic processes during fermentation in tea production?

<p>30-40 °C (C)</p> Signup and view all the answers

Fermentation helps in the formation of unpleasant tasting substances.

<p>False (B)</p> Signup and view all the answers

What should most drugs be stored in to prevent damage from light?

<p>Dark or amber-colored glass containers</p> Signup and view all the answers

Fumigation with __________ should be repeated at intervals to allow for the hatching of insect eggs.

<p>volatile insecticides</p> Signup and view all the answers

Match the following methods of controlling infestation with their descriptions:

<p>Heat Treatment = Kills insects and eggs at 60-65 °C Freezing = Exposes drugs to -10 to -15 °C for 12-18 hours Fumigation = Involves using volatile insecticides Liming = Blocks respiratory systems of insects with lime</p> Signup and view all the answers

Which of the following substances is used as a rodenticide?

<p>Alpha Naphthyl Thio Urea (ANTU) (B)</p> Signup and view all the answers

Storing drugs in paper or cardboard containers protects them from rodent damage.

<p>False (B)</p> Signup and view all the answers

What is the purpose of liming in drug preservation?

<p>To block the respiratory system of insects and larvae</p> Signup and view all the answers

The ideal low temperature for the freezing method to kill insects is __________ °C.

<p>-10 to -15</p> Signup and view all the answers

What is the primary risk posed by oxygen in drug storage?

<p>Oxidation of active compounds (B)</p> Signup and view all the answers

Flashcards

Fermentation in medicinal plants

The process where plant components are changed through enzymatic actions. Can improve the quality of some medicinal plants.

Ideal storage conditions for medicinal plants

Storing medicinal plants in a dry, well-ventilated environment, protected from light, with temperature control and pest prevention.

Stabilization of medicinal plants

Reducing the moisture content of medicinal plants to inhibit enzyme activity and microbial growth.

Permanent Stabilization

A type of stabilization that involves exposing the fresh drug to alcohol vapors or immersing it in alcohol, permanently inactivating enzymes.

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Temporary Stabilization

The process of inactivating enzymes in medicinal plants by storing them with dehydrating agents like quick lime or calcium chloride.

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How moisture affects medicinal plants

Moisture promotes the growth of microorganisms and enzymatic hydrolysis, which can degrade the medicinal properties of plants.

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Moisture's effect on drug weight

Excessive moisture can lead to increased weight of the drug due to microbial growth.

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Sophistication (True Adulteration)

The addition of an inferior material to a drug with the intention to defraud, decrease its quality, and often make it cheaper. This is where the real 'trickery' happens.

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Substitution

A type of adulteration where a different substance is entirely used in place of the original drug. This is like getting a fake product instead of the real thing.

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Admixture

The addition of one substance to another accidentally, through carelessness or lack of knowledge. This is like a mix-up or a mistake.

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Spoilage

Deterioration of a drug's quality due to the action of bacteria or fungi, making it unfit for use. This is when the drug 'goes bad'.

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Exhausted Drugs

A type of adulteration where the drug's quality is reduced, not through deliberate addition, but through natural processes like drying up or becoming less effective.

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Fermentation

This process is used to remove bitter or unpleasant tasting compounds from medicinal plants. Aromatic compounds with pleasant smells or tastes are also formed during this process. This is commonly used for spices or stimulants like vanilla and tea.

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Fermentation Process in Tea Factory

Enzymatic processes in plants are accelerated by covering them with thick layers of fresh material, raising the temperature (30-40°C) and humidity. After fermentation, drying is essential to prevent mold growth.

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Light (Phyto Chemical Reaction)

Drugs should be stored in dark or amber-colored glass containers to prevent chemical changes caused by light.

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Temperature (Storage)

Low temperatures help to preserve the active components of medicines and prevent their degradation.

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Air (Oxygen) effects on medicines

Air (Oxygen) can cause oxidation of active compounds in medicine, leading to changes like rancidity in oils or resinification. Storing drugs in airtight containers helps prevent this.

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Heat Treatment

This method involves exposing medicinal plants to temperatures between 60-65°C for a specific duration to eliminate insects and their eggs. It is not suitable for medicines that decompose under heat.

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Freezing (Low Temperature)

Drugs are exposed to temperatures between -10 to -15°C for 12-18 hours to kill insects and their eggs. Alternating between low and high temperatures is more effective than prolonged exposure to low temperatures.

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Fumigation

Using volatile insecticides in closed areas to kill insects and larvae. Carbon Tetrachloride, Carbon bisulfide and cyanide, and T-gas (ethylene oxide and CO2) are common examples. Safe fumigation processes are crucial for medicinal plants.

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Liming

This method involves dipping the drug in freshly slacked lime or sprinkling it with quicklime. This blocks the respiratory system of insects and larvae. This technique is used for drugs like ginger and nutmeg.

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Rodents & Storage

Rodents can damage stored drugs, particularly those in paper, cloth, cardboard or wooden containers. Glass, plastic or metal containers offer better protection. Rodenticides like ANTU can be used to control rats and mice.

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Study Notes

Botany (Medicinal Plants) - General Introduction

  • Medicinal plants are a focus of botany.
  • Storage conditions affect the quality of medicinal plants.

Storage

  • Poor storage leads to undesirable changes in aromatic, fixed, and volatile oils.
  • Sensitive drugs lose activity, and oils can change color or odor.
  • WHO guidelines for storage:
    • Materials should be well-ventilated and protected from light.
    • Use air conditioning and humidity control.
    • Protect against rodents and insects.
    • Herbal drugs containing essential oils need to be stored in dry, well-ventilated containers, with limited temperature fluctuations.
    • Fresh medicinal plants should be stored at low temperatures.
    • Small quantities of crude drugs should be kept in airtight, moisture-free containers, in the dark, at low temperatures, in inert gas.
    • Certain drugs need to be stored at least a year before use (e.g., cascara and frangula barks).
  • Moisture affects the storage quality, as moisture increases enzymatic hydrolysis and the growth of microorganisms.
  • To overcome moisture effects, drugs are stabilized.
  • Temporary stabilization can be achieved by using dehydrating agents like quicklime.
  • Permanent stabilization can be done using alcohol vapors.
  • Biological factors (bacteria, molds, worms, rodents) can affect drug storage.
  • Preventing damage by heat treatment (60-65°C).
  • Storing in low temp. (-10 to -15°C) for 12-18 hours.

Fermentation

  • Fermentation (enzymatic transformation) of some plant constituents can be desirable.
  • The process involves raising the temperature (30-40°C) and humidity.
  • This is commonly performed in tea factories.
  • Fermentation improves the taste and smell of the drug.
  • Fermentation helps to remove unpleasant tastes.
  • Prevent microbial attack (e.g., molds) after fermentation.

Light

  • Light affects drugs.
  • Drugs are stored in dark or amber-colored containers to reduce the impact of light.

Temperature

  • Drugs are stored at a low temperature.

Air (Oxygen)

  • Oxygen causes oxidation in drugs (e.g., fixed oils). This leads to rancidity or resinification.

Adulteration

  • Adulteration is the decrease in quality of a drug, especially when the drug is rare or expensive.
  • Sophistication (true adulteration): Inferior material is added to a drug. (e.g., adding white flour to ginger).
  • Substitution: An entirely different substance is used instead of the intended drug. (e.g. inferior grade of senna being used instead of alex. senna).
  • Admixture: Adding one substance to another. Examples include accidentally mixing materials or adding different parts of the same plant).
  • Spoilage: The drug's usefulness is destroyed by bacteria or fungi.
  • addition of worthless heavy materials ( adding stones and sand for increase weight)

Questions

  • Questions about the truthfulness of statements about storage and adulteration are included.
  • Questions about factors affecting storage and types of adulteration. The types of factors listed in the document were physical and biological.

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Description

This quiz provides an overview of the key concepts related to medicinal plants in botany, focusing particularly on the importance of proper storage conditions. Learn how storage can affect the quality, efficacy, and safety of various medicinal plants as outlined by WHO guidelines.

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