F-Part 1 Flashcards
PPT 1 (Slide 1 - 24) + PPT 2 (Slide 5 - 6) (49 cards)
__ ___ content of a drug is the residue, consisting chiefly of cellulose that remains undissolved after successive treatment with boiling acid and alkali.
Crude fiber
What is the crude fiber content of a drug considered as?
residue
A determination of crude fiber is used in evaluating the efficiency of _____
and separating ___ from the starchy endosperm.
milling, bran
What is crude fiber also useful for when it comes to fresh vegetables and fruits?
succulence
What kind of products have increased levels of crude fiber?
over mature products
What is the principle involved in cocoa?
gravimetric method of analysis
What will be the sample?
Cocoa powder
What is the scientific name and family of Cocoa?
Theobroma cacao, Sterculiaceae
What are the uses of cocoa?
emmenagogue, emollient, and nutritive
What is the crude fiber limit of cocoa?
7% of ether-insoluble residue
(1) The residue is collected on a ___, preferably in ___ ___, washed free of alkali, dried, and weighed accurately.
filter, Gooch crucible
(2) The fibrous matter should be incinerated cautiously at first and the at low red heat until the ___ is completely burned-off, as indicated by the formation of __ ___.
carbon, white ash
(3) The cellulose, etc. is burned when the fiber is incinerated, leaving the __ ____.
inorganic matter
Residues of official substances obtained such as water, alcohol, ether, acids and bases are also means of establishing ___ ___.
purity standards
The amount of ____is often an ____ ____ of the amount of certain soluble constituents or group of related constituents.
extractive, approximate measure
What are the four extractive methods in the determination of NVESE in cocoa?
volatile and non-volatile ESE
alcohol-soluble extractive
diluted alcohol extractive
water-soluble extractives and water insoluble residue
What does the volatile ether-soluble extractives represent?
volatile oil of the drug
What does the non-volatile ether-soluble extractives represent?
the active constituents associated
What are examples of volatile matter associated with NVESE?
fixed oils, resins, coloring matter
What are examples of NVESE?
capsicum, male fern, myristica, cocoa
In a ___ ____ apparatus, the extraction is continued for 8 hours to ensure complete removal of the ether-soluble constituents from the powdered cocoa.
Soxhlet Extraction
___ ___ is used because it does not contain small, variable quantities of water therefore does not dissolve some tannin, sugar, etc.
Absolute Ether
At what temperature does ether boil?
35 degree C
Cocoa must yield ____ __ __ ___ and ___ ___ __ ___ of NVESE
not less than 10% and not more than 22% of NVESE