Edible vegetable oils also typically contain small fractions of biogenic alkanes with a wide spectrum of carbon numbers, mainly 8 to 35, usually peaking in the low to upper 20s, with concentrations up to dozens of milligrams per kilogram (parts per million by weight) and sometimes over a hundred for the total alkane fraction.
ˈɛdᵻbəl vˈɛdʒɪɾəbəl ˈɔɪlz ˈɔːlsoʊ tˈɪpɪkli kəntˈeɪn smˈɔːl fɹˈækʃənz ʌv bˌaɪoʊdʒˈɛnɪk ˈælkeɪnz wɪð ɐ wˈaɪd spˈɛktɹəm ʌv kˈɑːɹbən nˈʌmbɚz, mˈeɪnli ˈeɪt tə θˈɜːɾi fˈaɪv, jˈuːʒuːəli pˈiːkɪŋ ɪnðə lˈoʊ tʊ ˌʌpɚ twˈɛnti z, wɪð kˌɑːnsəntɹˈeɪʃənz ˌʌp tə dˈʌzənz ʌv mˈɪlɪɡɹˌæmz pɜː kˈɪləɡɹˌæm pˈɑːɹts pɜː mˈɪliən baɪ wˈeɪt ænd sˈʌmtaɪmz ˌoʊvɚɹ ɐ hˈʌndɹɪd fɚðə tˈoʊɾəl ˈælkeɪn fɹˈækʃən.