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The sources of biodiesel could be grouped into vegetable oil that includes edible and non-edible oils, animal fats and waste vegetable oils. Vegetable oils have great potential to be used as liquid fuels. The vegetable oils are combustible in diesel engines. For over several centuries, the use of vegetable oils for lighting lamps as fuel has been noted. The usage of the vegetable oil for diesel engine also started more than a century ago. The inventor of the diesel engine, Dr. Rudolf Diesel used peanut oil for testing of the engine and demonstrated the compression ignition engine. Owing to the availability, different oils have been in use in different countries as feed stock for biodiesel production. In western countries edible oils are used as sources of biodiesel production. For example, soybean oil in United States, sunflower and rapeseed oil in Europe, palm oil in Malaysia and Indonesia, coconut oil in Philippines. India being diverse in vegetation; non- edible oils are used for biodiesel production. The major non-edible oils used for biodiesel production in India include, honge (Pongamia pinnata), neem (Azadirachta indica), mahua (Madhuca indica), jatropha (Jatropha curcas), rubber (Hevea brasiliensis), laxmi taru (Simarouba glauca). Biodiesel could also be produced from animal fat. Several researches have been carried out by using raw material such as fish oil, duck tallow, mutton tallow and other animal tallow for biodiesel production. Waste vegetable oil (oil after frying the food) could also be a raw material for biodiesel. The following table indicates the oil yielding plants available in India.

Table1.Oil yielding plants

Sl. No Species Common Name Oil percentage    
1 Anacardium occidentale Godambi  40-60%
2 Antidesma menasu Kare soppu  15-20%
3 Aphanamixis polystachya Hottenola  10-20%
4 Aporusa lindleyana Salli  15-25%
5 Azadirachta indica Baevu  35-43%
6 Baccaurea courtallensis  Kodi kukke  20-35%
7 Bauhinia malabarica  Basavana paada  10-25%
8 Bauhinia phoenicea  Kembattu balli  10-20%
9 Bauhinia purpurea  Kanchivaala  10-20%
10 Bauhinia racemosa  Neeru kanagile  10-20%
11 Bauhinia varigata  Kempu kangivaala  10-20%
12 Bischofia javanica  Gobranerale  20-30%
13 Bridelia crenulata  15-20%
14 Bridelia montana  Aekaveera  15-20%
15 Bridelia stipularis  Akshathe balli  15-20%
16 Buchanania axillaris  Murkaalu  20-35%
17 Buchanania lanzan Mukuri mara  20-35%
18 Butea monosperma Muttuga  15-28%
19 Butea superba  Mutthugada balli  15-25%
20 Caryota urens  Bagani mara  20-30%
21 Cassia fistula Kakke gida  15-20%
22 Cassia montana Betta thangadi  15-20%
23 Cassia siamia  Seeme thangadi  15-20%
24 Chloroxylon swietenia  Masivaala  15-30%
25 Chrysophyllum lanceolatum  Kappale  30-40%
26 Chukrasia tabularis  Gandhagarige  20-28%
27 Cipadessa baccifera  Chittimbe 10- 20%
28 Connarus wightii  Antu guggula  15-25%
29 Corypha umbraculifera  Thaale  15-25%
30 Daphniphyllum neilgherrense  Neer kakke  10-20%
31 Derris scandens  Handi  balli  15-25%
32 Drypetes confertiflorus  15-25%
33 Dysoxylum binectariferum  Kaadugandha  15-20%
34 Dysoxylum malabaricum Biliagilu  15-20%
35 Emblica officinalis Nelli  15-20%
36 Erythrina stricta Keechige  15-25%
37 Erythrina suberosa  Mullu mutthuga  15-25%
38 Euphorbia antiquorum  Bonte kalli  20-25%
39 Fahrenheitia zeylanica  Sotige  15-20%
40 Givotia rottleriformis Boothale mara  15-20%
41 Glochidion malabaricum  15-25%
42 Glochidion zeylanicum Kumbala mara  15%
43 Holigarna arnottiana Hole gaeru  25-35%
44 Holigarna grahamii Kankana gaala  25-35%
45 Jatropha curcas Kaadu haralu  30-35%
46 Kingiodendron pinnatum Aenne mara  15-20%
47 Kirganalia reticulata Hooli gida  15%
48 Lannea coromandelica Oodimara  10-25%
49 Lansium anamallayanum Chigat maari  10-20%
50 Macaranga indica Uppale  10-15%
51 Macaranga peltata Uplige  10-15%
52 Madhuca indica  Hippe  25-35%
53 Madhuca longifolia Hippe mara  25-35%
54 Madhuca neriifolia Hole hippe  20-30%
55 Mallotus philippensis Kunkuma  10-20%
56 Mallotus tetracoccus  Uppala  10-20%
57 Mangifera indica Maavina mara  10-25%
58 Melia dubia Ara bevu  15-25%
59 Mimusops elengi Pagade  25-30%
60 Moullava spicata  Kadanche  15-20%
61 Nothopegia beddomei  Mathigaara  15-20%
62 Nothopegia racemosa  15-20%
63 Ougenia ougensis  Betta honne  10-15%
64 Palaquium ellipticum  Panchoti mara  25-35%
65 Phoenix dactylifera Kharjura  10-15%
66 Phoenix humilis  Kiri eechalu  10-20%
67 Phoenix sylvestris Eechala mara 10-15%
68 Pongamia pinnata honge mara  30-35%
69 Pterocarpus marsupium Honne mara  15-25%
70 Pterospermum acerifolium Raajatharu  10-15%
71 Pterospermum diversifolium Thaddu  10-15%
72 Pterospermum heyneanum  Oopina mara  10-15%
73 Pterygota alata  Kolugida  30-40%
74 Scleropyrum  pentandrum  Benduga  40-50%
75 Saraca asoca Ashoka mara  50-60%
76 Securinega leucopyrus Bili hooli  15-20%
77 Semecarpus anacardium Kari geru  30-35%
78 Soymida febrifuga Swamy mara  15-20%
79 Spondias pinnata  Amte Kaayi  25-30%
80 Sterculia guttata  Kudure gotu  30-45%
81 Sterculia urens  Kempu daale  30-40%
82 Sterculia villosa  Biliya thaale  25-30%
83 Sweitenia mahogony Mahogany  15%
84 Tamarindus indica Hunase  10-15%
85 Toona ciliata  Nandi vruksha  10-20%
86 Trewia nudiflora  Kaadu kambala  10-15%
87 Trichilia connaroides  Kora  15-25%
88 Walsura trifolia  Male Saagade  10-15%
89 Xantolis tomentosa  Kampale  20-30%
90 Xylia xylocarpa  Arasu thega  10-15%