tˈuː,θɹˈiː bjˈuːteɪndɪˌɑːl ɪz pɹədˈuːst æt vˈɛɹiɪŋ lˈɛvəlz ɪn ɛɹˈeɪɾᵻd fɜːməntˈeɪʃənz æz lˈɔŋ æz ðə dɪsˈɑːlvd ˈɑːksɪdʒən lˈɛvəl ɪz lˈɪmɪɾɪŋ ˈaɪ.ˈiː., ðə kˈʌltʃɚɹ ɪz tɹˈaɪɪŋ tə kənsˈuːm mˈoːɹ ˈɑːksɪdʒən ðɐn ɪz ɐvˈeɪləbəl.
2,3 Butanediol is produced at varying levels in aerated fermentations as long as the dissolved oxygen level is limiting (i.e., the culture is trying to consume more oxygen than is available).