Table 1.

Other reports of tunicate cellulose purification strategies and respective yields.

Tunicate feedstock	Deproteination	Bleaching	Pretreatment yield (%)*	References
Salpa fusiformis	Pronase in buffer	NaOH reflux	N/A	54
Styela clava	KOH	NaClO/CH3COOH	N/A	26,34,35,55
Halocynthia roretzi	KOH	NaClO/CH3COOH	N/A	56
Halocynthia papillosa	NaOH	NaClO2	N/A	29
Halocynthia roretzi	NaOH	NaClO2	N/A	57
Halocynthia roretzi Drasche	NaOH	H2O2	20	58–60
Styela clava	NaOH	NaClO2/CH3COOH	31	This work
Styela clava	Three step hydrothermal process 1 Prehydrolysis (H2SO4) 2 Kraft Cooking (NaOH/Na2S) 3 Bleaching (NaClO) Step 1 & 2: 180 °C | 2 h Step 3: 75 °C | 1 h		40	18
Ciona intestinalis			30	18
Ciona intestinalis			12	10,30,61
Ascidia sp.			3	10
Cynthia roretzi			30	62
Styela plicata			24	10
Halocynthia roretzi			21	10

*Approximate values | N/A = not reported.