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Table 4 Comparison of the algal biomass digestibility, crystalline intensity, and hydrogen-bond intensity of different types of algal biomass before and after thermal hydroxyl pretreatment

From: Hydroxyl radical-aided thermal pretreatment of algal biomass for enhanced biodegradability

  Microalgae Macroalgae
Chlorella sorokiniana Scenedesmus quadricanda Haematococcus pluvialis Chlamydomonas hedleyi Ulva prolifera Porphyra umbilicalis Gelidium amansii Macrocystis pyrifera
Before After Before After Before After Before After Before After Before After Before After Before After
Enzymatic digestibility 47.73 81.82 49.90 80.85 3.63 79.61 10.20 80.27 23.09 84.79 14.57 91.64 39.23 87.23 44.69 98.59
Crystalline intensity 0.313 0.212 0.327 0.056 0.112 0.000 0.333 0.200 0.441 0.327 67.296 52.677 40.976 19.940 0.358 0.264
Hydrogen-bond intensity 92.628 56.750 46.482 2.600 37.149 31.948 164.188 61.342 220.970 81.526 0.388 0.378 0.260 0.000 102.065 58.407