Final Flashcards
Define a secondary metabolite.
Secondary metabolites are compounds that are not directly involved in the growth, reproduction, or photosynthesis of plants. They are derived from primary metabolites (which are involved in growth, reproduction and photosynthesis). They have a vast array of functions and are generally associated with the defense from other organisms, attraction of pollinators and other symbiotes, and protection from environmental factors such as UV radiation.
Simple phenolic structure
one benzene ring with an OH group
Tannin info (structure)
Astringents/phenolic acids w/ ester linkages to a central glucose
Cumarins and furanocumarins structure
couple of benzene rings with just oxygen on them
Chromones and furanchromones structure
look pretty similar to Cumarins and furanocumarins…benzene rings with just oxygen
anthroquinone structure
2 benzene rings linked with a central ring that is not aromatic and has 2 ester linkages
Lignan structure
Dimeric compounds formed by two phenylpropene derivatives…basically benzene with linear linkage arms
Stilbene structure
kinda like lignans with linear linkage arm that has 1 double bond
Flavanoid structure
3 aromatic rings, 3 ring circus
Simple, smaller phenolic compounds tend to be
volatile…review says mono and sequiterpenes are volatile
What is a glycoside? What are its components?
Phenolic compound with a sugar group. Phenolic compound is an aglycone and the sugar is a glycone
How are anthraquinones used medically
irritant laxatives
Volatile phenolic classes
simple phenolics, coumarins, furanocoumarins, chromones, furanochromones
anthocyanins
glycoside of athocyanidins
anthocyanidins
charges
proanthocyanidins
polymers and oligomers of flavan-3-ol, condensed tannins
Which classes of phenolic compounds act as phytoestrogens?
lignans (flax) and isoflavones (soy)
Why do phenolic compounds have antioxidant properties
resonance stabilization, especially ring structures
Carbons in a monoterpene
10
carbons in a sesquiterpene
15
carbons in a diterpene
20
carbons in a triterpene
30
carbons in a tetraterpene
40
what classes of terpenes are volatile?
mono and i think sesquiterpene as well
definition of a resin
matrix of di/tri-terpenes + volatile oils, released in response to injury, often anti-microbial…if it has polysaccharides then it is called a gum resin
Define amphipathic
chemical compound with hydrophobic and hydrophilic ends
What is a saponin
Terpene molecules with 2-4 sugar moieties attached, sugar is hydrophilic
and ther terpene is hydrophilic
What are the basic properties of an alkaloid?
Contain N, and are alkaline. NOTE: substances are classified by chemical structure NOT
function
How are alkaloids classified?
Substances are classified by chemical structure NOT function
Define mucilage.
Polysaccharides – slimey, used as demulcent. Cold infusion. E.g. slippery elm, glycyrrhiza, marshmallow
Know the effect of bitters on the function of the GI tract.
Increase acid secretion, saliva, Ghrelin, CCK, gut motility
What type of compound are the bitter principles in Gentiana lutea?
Secoiridoid glycoside
What type of compound is, in large part, responsible for the antispasmodic action of carminative herbs.
Volatile oils - monoterpenes
What purpose do astringent herbs serve? What are some examples of conditions treated with astringent herbs.
Tighten up tissues, close membranes. Hemorrhoids, leaky gut, secretory diarrhea
What purpose do demulcent herbs serve? What are some examples of conditions treated with demulcent herbs.
Calm/soothe irritated/inflamed membranes Sore throat, gastritis, IBS
major indications for the use of Gentiana lutea (gentian)
stimulate digestion, analgesic, anti-inflammatory, cholagogue
major indications for the use of Zingiber officinale (ginger)
warming, anti-emetic, diaphoretic, diuretic, increase circulation
major indications for the use of Foeniculum vulgare (fennel)
promotes lactation, relieves flatulence/bloating
major indications for the use of Citrus sinensis/aurantium (bitter orange)
dyspepsia, loss of appetite
major indications for the use of Matricaria recutita (chamomile)
antiemetic, nervine, bitter, carminative
major indications for the use of Geranium maculatum (geranium)
astringent, part of Robert’s formula (IBS), chronic diarrhea
major indications for the use of Rumex crispus (yellow dock)
nutritive, strong astringent, patient’s going on new diet, leaky gut
Understand the difference between a laxative, purgative, and a cathartic.
Laxative: mild
Purgative: moderate
Cathartic: severe, “coming out both ends”
What is the primary type of constituent responsible for the action of the purgative/cathartic herbs?
Anthroquinone glycosides
What are the uses of the outer leaf and inner gel of Aloe vera?
Outer: strong irritant laxative
Inner: demulcant, soothing, cool and moist, anti-inflammatory, polysaccharides (immunomodulating), bulking
major indications for the use of Linum usitatissimum (flaxseed)
constipation (increase stool bulk), nutritive, colon damage, gastritis/enteritis
major indications for the use of Plantago spp (psyllium husk)
chronic constipation, fissures, hemorrhoids, pregnancy, hyperlipidemia
major indications for the use of Aloe spp
constipation (outer leaf)
major indications for the use of Rhamnus purshiana (bearberry)
constpations, atonic bowels (w/ chronic hemorrhoids)
major indications for the use of Cassia senna (senna)
irritant laxative
major indications for the use of Aesculus hippocastinum (horse chestnut)
blunt traumas, hematomas, hemorrhoids
major indications for the use of Ruscus aculeatus (butcher’s broom)
hemorrhoids (OK in pregnancy)