An official website of the United States government.

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

Dr. Duke's Phytochemical and Ethnobotanical Databases
U.S. Department of Agriculture
  • Deprecated function: stripos(): Passing null to parameter #1 ($haystack) of type string is deprecated in Drupal\Core\EventSubscriber\ActiveLinkResponseFilter->onResponse() (line 85 of core/lib/Drupal/Core/EventSubscriber/ActiveLinkResponseFilter.php).
  • Deprecated function: stripos(): Passing null to parameter #1 ($haystack) of type string is deprecated in Drupal\Core\EventSubscriber\RssResponseRelativeUrlFilter->onResponse() (line 24 of core/lib/Drupal/Core/EventSubscriber/RssResponseRelativeUrlFilter.php).
  • Deprecated function: stripos(): Passing null to parameter #1 ($haystack) of type string is deprecated in Drupal\Core\EventSubscriber\ActiveLinkResponseFilter->onResponse() (line 85 of core/lib/Drupal/Core/EventSubscriber/ActiveLinkResponseFilter.php).
  • Deprecated function: stripos(): Passing null to parameter #1 ($haystack) of type string is deprecated in Drupal\Core\EventSubscriber\RssResponseRelativeUrlFilter->onResponse() (line 24 of core/lib/Drupal/Core/EventSubscriber/RssResponseRelativeUrlFilter.php).
  1. Home
  2. NO-Inhibitor

NO-Inhibitor

Select a Results View:

Download these results as:
CSV
EXCEL
PDF
List of activity chemicals.
Click on column headings to sort table by that column. *Unless otherwise noted all references are to (Duke, 1992)
Chemical Name Dosage Reference
(+)-CATECHIN IC11=250 uM *
AJOENE IC50=2.5-5 uM *
ALLICIN IC50=2.5-5 uM *
ANDROGRAPHOLIDE IC50=36 uM *
BOLDINE *
BROUSSOCHALCONE-A *
CITRAL *
CURCUMIN *
DELPHINIDIN IC78=250 uM *
DIOSMETIN EC50=19 uM *
EMODIN IC50=60.7 uM *
EPICATECHIN *
GALLIC-ACID IC-26=250 uM *
GAMMA-TOCOPHEROL *
INDOLE-3-CARBINOL *
KAEMPFEROL IC50=13.9 uM *
LUTEOLIN *
QUERCETIN IC>50=125 uM *
QUERCETIN IC50=20 uM *
TOCOPHEROL *
Download these results as:
CSV
EXCEL
PDF
List of Activity Plants.
Click on column headings to sort table by that column.
Plant Name Common Name Chemical Count Total Parts Per Million
Azadirachta indica Neem 2 4, 000
Ballota nigra Black Horehound 1 0
Baptisia tinctoria Wild Indigo 1 0
Barosma betulina Buchu 1 0
Basella alba Vinespinach 1 0
Berberis vulgaris Barberry 2 0
Bertholletia excelsa Brazilnut; Brazilnut-Tree; Creamnut; Paranut 1 320
Beta vulgaris Beet; Beetroot; Sugar Beet; Garden Beet 2 0
Boehmeria nivea Ramie 1 0
Borago officinalis Borage; Beebread; Beeplant; Talewort 3 0
Brassica oleracea Kohlrabi 2 120
Brassica oleracea var. botrytis l. Cauliflower 3 42
Brassica oleracea var. capitata l. Cabbage; Red Cabbage; White Cabbage 3 1, 500
Brassica oleracea var. gemmifera Brussels-Sprouts; Brussel-Sprout 2 100
Brassica oleracea var. italica Broccoli; Heading Broccoli; Sprouting Broccoli; Cape Broccoli; Purple Cauliflower; Asparagus Broccoli; Winter Broccoli; Calabrese 3 0
Brassica oleracea var. sabellica l. Kale; Curly Kale; Kitchen Kale; Scotch Kale 2 452
Brassica rapa Sarson 1 486
Caesalpinia pulcherrima Bird Of Paradise 2 0
Calendula officinalis Calendula; Pot-Marigold 3 0
Camellia sinensis Tea 5 58, 470