Effect of pH and temperature on microbial community structure and carboxylic acid yield during the acidogenic digestion of duckweed

Table 2 Alpha diversity metrics for microbial populations in duckweed acidogenically digested under different environmental conditions

Sample type	Good’s coverage	Observed OTUs	Chao1	Shannon diversity index	Simpson diversity index
Acidic mesophilic
Blank	0.997 ± 0.001	789 ± 86	943 ± 81	4.53 ± 0.21	0.891 ± 0.017
Active	0.990 ± 0.002	1819 ± 82	2495 ± 54	6.04 ± 0.07	0.955 ± 0.003
Control	0.967 ± 0.003	2688 ± 13	3772 ± 240	7.77 ± 0.23	0.974 ± 0.009
Acidic thermophilic
Blank	0.999 ± 0.000	135 ± 9	221 ± 42	0.85 ± 0.35	0.261 ± 0.117
Active	0.993 ± 0.001	981 ± 89	1511 ± 129	3.64 ± 0.07	0.809 ± 0.018
Control	0.989 ± 0.000	2492 ± 235	2960 ± 258	6.66 ± 0.40	0.945 ± 0.028
Basic mesophilic
Blank	0.993 ± 0.003	1155 ± 298	1481 ± 381	5.65 ± 0.68	0.947 ± 0.017
Active	0.983 ± 0.002	2145 ± 235	3155 ± 236	6.23 ± 0.41	0.947 ± 0.018
Control	0.960 ± 0.002	4226 ± 98	6141 ± 0	8.61 ± 0.08	0.988 ± 0.002
Basic thermophilic
Blank	0.993 ± 0.001	1135 ± 151	1463 ± 146	4.62 ± 0.26	0.826 ± 0.025
Active	0.986 ± 0.001	2251 ± 222	3156 ± 361	5.77 ± 0.20	0.916 ± 0.012
Control	0.960 ± 0.004	4626 ± 267	6568 ± 407	9.15 ± 0.01	0.993 ± 0.000
Acidic inoculum	0.976 ± 0.004	2637 ± 242	3706 ± 49	7.12 ± 0.06	0.974 ± 0.001
Basic inoculum	0.961 ± 0.000	3421 ± 92	5129 ± 1	8.48 ± 0.03	0.988 ± 0.000
Duckweed	0.984 ± 0.002	1539 ± 159	2053 ± 129	7.07 ± 0.17	0.971 ± 0.006

ISSN: 2731-3654