Application of Alkaline Pulping to Pruned Branches of Citrus limon from Sudan

This study aims to utilize the pruned branches of Citrus limon in pulping with alkaline methods and determine suitability guar gum improve strength properties pulps limitations cutting trees for environmental issues utilization lemon as horticultural residues. These branches’ physical exhibited high medium density very low percentages bark wood ratio. The whole chemical components these raw materials indicated a pulp cooking methods. In addition, sulfite anthraquinone methanol gave excellent screened yield (60.1 %), negligible rejects, bleachable Kappa number 19.5, best properties, especially tensile strengths. Alkaline small percentage rejects number. On other hand, soda produced acceptable (41.9 (3 suitable good yields (56 - 59.7 %). Obviously, anthraquinone’s effect preserving carbohydrates, specifically hemicelluloses, increases Guar improved pulps’ when added during beating (0.25 % on oven-dry Soda-AQ pulps). It clears an age 2 years all applied.