Premium
Prevention of the development of polluting characteristics in cooking water residue from nixtamalisation of corn by removing solid lime particles
Author(s) -
BalderasLópez Juan Manuel,
Prinyawiwatkul Witoon,
ArámbulaVilla Gerónimo,
HernándezRosas Francisco,
LeyvaOvalle Otto Raul,
Houbron Eric Pascal,
HerreraCorredor José Andrés
Publication year - 2019
Publication title -
international journal of food science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.831
H-Index - 96
eISSN - 1365-2621
pISSN - 0950-5423
DOI - 10.1111/ijfs.13983
Subject(s) - lime , calcium hydroxide , alkalinity , calcium oxide , chemical oxygen demand , moisture , pulp and paper industry , chemistry , wastewater , biochemical oxygen demand , environmental science , metallurgy , materials science , environmental engineering , organic chemistry , engineering
Summary Removing solid lime particles ( SLP ) may help to prevent polluting characteristics of corn cooking wastewater (nejayote). The objective of this study was to evaluate the polluting characteristics of nejayote and characteristics of nixtamal, masa and tortilla using SLP ‐free solutions ( SLPF ) for the nixtamalisation process. Two SLPF treatments: calcium hydroxide ( CHYDROX ) and calcium oxide ( COXIDE ) were compared against traditional nixtamalisation ( TRADNIX ). Polluting characteristics including pH , settleable solids, total hardness, alkalinity and chemical oxygen demand ( COD ) reduced by 29.5% and 24.3%, 61.9% and 63.3%, 46.3% and 54.7%, 43.3% and 55.1%, 41.1% and 67.7% in CHYDROX and COXIDE , respectively, compared to TRADNIX . Masas and tortillas from SLPF treatments were whiter than those from TRADNIX . Moisture in SLPF tortillas was lower by 4.3–6.3% compared to TRADNIX . Tortillas from SLPF treatments had higher maximum tensile strength (0.04–0.08 N mm −2 ) than TRADNIX . Removing SLP is a viable strategy for preventing pollution from the nixtamalisation process.