| Title |
Preliminary Characterization of a Spray-Dried Hydrocolloid from a High Andean Algae (Nostoc sphaericum) |
| ID_Doc |
10751 |
| Authors |
Choque-Quispe, D; Mojo-Quisani, A; Ligarda-Samanez, CA; Calla-Florez, M; Ramos-Pacheco, BS; Zamalloa-Puma, LM; Peralta-Guevara, DE; Solano-Reynoso, AM; Choque-Quispe, Y; Zamalloa-Puma, A; Palomino-Malpartida, YG; Medina-Quiquin, LD; Kari-Ferro, A |
| Title |
Preliminary Characterization of a Spray-Dried Hydrocolloid from a High Andean Algae (Nostoc sphaericum) |
| Year |
2022 |
| Published |
Foods, 11, 11 |
| DOI |
10.3390/foods11111640 |
| Abstract |
The search for new natural sources of hydrocolloids with stabilizing, thickening, and good binding capacity, from raw materials that are environmentally friendly and that contribute to the circular economy is a challenge for the food industry. The aim of the study was the preliminary characterization of a spray-dried hydrocolloid from high Andean algae Nostoc sphaericum. Four ecotypes of algae from Peruvian high Andean lagoons located above 4000 m were considered. The samples were collected in the period March-April 2021 and were subjected to a spray drying process in an aqueous medium. The characterization showed that the dehydrated nostoc ecotypes presented high protein and carbohydrate content, making it a potential material for direct use as a functional food for humans. The spray-dried product presented good stability for its use as a hydrocolloid, with zeta potential values (zeta), around 30 mV, evidencing the presence of -CO-, -OH, -COO-, and -CH groups, characteristic of polysaccharides, representing 40% of total organic carbon on average, giving it low water activity values and particle size at the nanometric level. Major minerals such as Ca (>277 mg/100 g), Mg (>19.7 mg/100 g), and Fe (>7.7 mg/100 g) were reported. Spray-dried nostoc is a hydrocolloid material with high potential for the food industry, with good nutritional content and techno-functional behavior. |
| Author Keywords |
spray dried; hydrocolloid; nostoc; stabilizer; zeta potential (zeta) |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:000808978300001 |
| WoS Category |
Food Science & Technology |
| Research Area |
Food Science & Technology |
| PDF |
https://www.mdpi.com/2304-8158/11/11/1640/pdf?version=1654507050
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