*Microwave-Assisted Extraction of Bioactive Compounds (Review) DOI: http://dx.doi.org/10.5772/intechopen.96092*

**Number**

**24**

54.

55.

56.

 Noni plant roots (*Morinda*

*citrifolia*)

 Tomato paste

 Purple corn (*Zea mays* L.) cob

 **Plant sample**

**Results obtained**

 MAE: Microwave

HCl-ethanol

Extraction time = 19 min

UMAE:

Microwave

KHz of ultrasonic processing,

ratio = 10.6, Extraction time = 367 s

MAE:

Anthraquinones

 (95.91%)

 A higher yield has been obtained with higher

[54]

antioxidant

 activity.

Microwave

 power = 720 W,

Temperature

ethanol (80%), Extraction time = 15 min

MAE:

Phenolic constituents

23.5 mg GAE/g)

Rutin compound (365 mg/g)

 (9.3–

Higher yields.

[85]

*Microwave Heating - Electromagnetic Fields Causing Thermal and Non-Thermal Effects*

Microwave

 power = 150 W,

Temperature

ethanol, time = 20 min

MAE:

Microwave

water (20 mL, 80/20, v/v), ratio = 15, Extraction time = 3 min

MAE:

Polyphenolic

 compounds

 Several phenolic compounds

 were extracted.

 [87]

Microwave

water (76/24% v/v),

Solvent/feed

time = 4 min

MAE:

Total phenolic

content = 85.64

GAE/g d.w.

Total flavonoid

 0.52 mg

Recovery of higher yield in a shorter time

[21]

compared to Soxhlet extraction technique.

Microwave

water (47/53% v/v), Extraction time = 2 min

Solvent/feed

 ratio = 14,

 power = 444 W, Solvent = ethanol/

60.

 Purple fleabane

 ratio = 10, Extraction

Temperature

 = 70 °C,

 power = 558 W, Solvent = ethanol/

Solvent/feed

Aloe-emodin

Higher yield compared to other extraction

[86]

methods.

 power = 340 W, Solvent = ethanol/

 = 60 °C, Solvent = 50 mL of

Solvent/feed

 ratio = 10, Extraction

57.

 Seeds, leaves, pulp, and fruits of

sea buckthorn (*Hippophae*

*rhamnoides*)

58.

59.

 Bitter leaves

 Aloe (Liliaceae)

Solvent/feed

 ratio = 100,

 = 60 °C, Solvent = 10 mL of

Solvent/feed

Lycopene (97.4%)

More efficient and rapid than UAE.

[84]

 power = 98 W, Frequency = 40

 (95%),

Solvent/feed

 ratio = 20,

 power = 555 W, Solvent = of 1.5 M

**Bioactive compounds**

Anthocyanins

100 g)

 (185.1 mg/

 **Remarks**

More efficient and rapid than CSE.

**Reference**

[83]
